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<?php

/*
 * phpMyEdit - instant MySQL table editor and code generator
 *
 * phpMyEdit.class.php - main table editor class definition file
 * ____________________________________________________________
 *
 * Copyright (c) 1999-2002 John McCreesh <jpmcc@users.sourceforge.net>
 * Copyright (c) 2001-2002 Jim Kraai <jkraai@users.sourceforge.net>
 * Versions 5.0 and higher developed by Ondrej Jombik <nepto@php.net>
 * Copyright (c) 2002-2006 Platon Group, http://platon.sk/
 * All rights reserved.
 *
 * See README file for more information about this software.
 * See COPYING file for license information.
 *
 * Download the latest version from
 * http://platon.sk/projects/phpMyEdit/
 */

/* $Platon: phpMyEdit/phpMyEdit.class.php,v 1.188 2006-09-08 16:30:31 michal Exp $ */

/*  This is a generic table editing program. The table and fields to be
        edited are defined in the calling program.

        This program works in three passes.
        * Pass 1 (the last part of the program) displays the selected MySQL
          table in a scrolling table on the screen. Radio buttons are used to
          select a record for editing or deletion. If the user chooses Add,
          Change, Copy, View or Delete buttons.
        * Pass 2 starts, displaying the selected record. If the user chooses
          the Save button from this screen.
        * Pass 3 processes the update and the display returns to the
          original table view (Pass 1).
*/

class phpMyEdit_timer /* {{{ */
{
        var $startTime;
        var $started;

        function phpMyEdit_timer($start = true)
        {
                $this->started = false;
                if ($start) {
                        $this->start();
                }
        }

        function start()
        {
                $startMtime      = explode(' ', microtime());
                $this->startTime = (double) $startMtime[0] + (double) $startMtime[1];
                $this->started   = true;
        }

        function end($iterations = 1)
        {
                // get the time, check whether the timer was started later
                $endMtime = explode(' ', microtime());
                if ($this->started) {
                        $endTime = (double)($endMtime[0])+(double)($endMtime[1]);
                        $dur = $endTime - $this->startTime;
                        $avg = 1000 * $dur / $iterations;
                        $avg = round(1000 * $avg) / 1000;
                        return $avg;
                } else {
                        return 'phpMyEdit_timer ERROR: timer not started';
                }
        }
} /* }}} */

if (! function_exists('array_search')) { /* {{{ */
        function array_search($needle, $haystack)
        {
                foreach ($haystack as $key => $value) {
                        if ($needle == $value)
                                return $key;
                }
                return false;
        }
} /* }}} */

if (! function_exists('realpath')) { /* {{{ */
        function realpath($path)
        {
                return $path;
        }
} /* }}} */

class phpMyEdit
{
        // Class variables {{{

        // Database handling
        var $hn;                // hostname
        var $un;                // user name
        var $pw;                // password
        var $tb;                // table
        var $db;                // database
        var $dbp;               // database with point
        var $dbh;               // database handle
        var $close_dbh; // if database handle should be closed

        // Record manipulation
        var $key;               // name of field which is the unique key
        var $key_num;   // number of field which is the unique key
        var $key_type;  // type of key field (int/real/string/date etc.)
        var $key_delim; // character used for key value quoting
        var $rec;               // number of record selected for editing
        var $inc;               // number of records to display
        var $fm;                // first record to display
        var $fl;                // is the filter row displayed (boolean)
        var $fds;               // sql field names
        var $fdn;               // sql field names => $k
        var $num_fds;   // number of fields
        var $options;   // options for users: ACDFVPI
        var $fdd;               // field definitions
        var $qfn;               // value of all filters used during the last pass
        var $sfn;               // sort field number (- = descending sort order)
        var $cur_tab;   // current selected tab

        // Operation
        var $navop;             // navigation buttons/operations
        var $sw;                // filter display/hide/clear button
        var $operation; // operation to do: Add, Change, Delete
        var $saveadd;
        var $moreadd;
        var $canceladd;
        var $savechange;
        var $morechange;
        var $cancelchange;
        var $savecopy;
        var $cancelcopy;
        var $savedelete;
        var $canceldelete;
        var $cancelview;

        // Additional features
        var $labels;            // multilingual labels
        var $cgi;                       // CGI variable features array
        var $js;                        // JS configuration array
        var $dhtml;                     // DHTML configuration array
        var $url;                       // URL array
        var $message;           // informational message to print
        var $notify;            // change notification e-mail adresses
        var $logtable;          // name of optional logtable
        var $navigation;        // navigation style
        var $tabs;                      // TAB names
        var $timer = null;      // phpMyEdit_timer object

        // Predefined variables
        var $comp_ops  = array('<'=>'<','<='=>'<=','='=>'=','>='=>'>=','>'=>'>');
        var $sql_aggrs = array(
                        'sum'   => 'Total',
                        'avg'   => 'Average',
                        'min'   => 'Minimum',
                        'max'   => 'Maximum',
                        'count' => 'Count');
        var $page_types = array(
                        'L' => 'list',
                        'F' => 'filter',
                        'A' => 'add',
                        'V' => 'view',
                        'C' => 'change',
                        'P' => 'copy',
                        'D' => 'delete'
                        );
        var $default_buttons = array(
                        'L' => array('<<','<','add','view','change','copy','delete','>','>>','goto','goto_combo'),
                        'F' => array('<<','<','add','view','change','copy','delete','>','>>','goto','goto_combo'),
                        'A' => array('save','more','cancel'),
                        'C' => array('save','more','cancel'),
                        'P' => array('save', 'cancel'),
                        'D' => array('save','cancel'),
                        'V' => array('change','cancel')
                        );
        // }}}

        /*
         * column specific functions
         */

        function col_has_sql($k)    { return isset($this->fdd[$k]['sql']); }
        function col_has_sqlw($k)   { return isset($this->fdd[$k]['sqlw']) && !$this->virtual($k); }
        function col_has_values($k) { return isset($this->fdd[$k]['values']) || isset($this->fdd[$k]['values2']); }
        function col_has_php($k)    { return isset($this->fdd[$k]['php']); }
        function col_has_URL($k)    { return isset($this->fdd[$k]['URL'])
                || isset($this->fdd[$k]['URLprefix']) || isset($this->fdd[$k]['URLpostfix']); }
        function col_has_multiple($k)
        { return $this->col_has_multiple_select($k) || $this->col_has_checkboxes($k); }
        function col_has_multiple_select($k)
        { return $this->fdd[$k]['select'] == 'M' && ! $this->fdd[$k]['values']['table']; }
        function col_has_checkboxes($k)
        { return $this->fdd[$k]['select'] == 'C' && ! $this->fdd[$k]['values']['table']; }
        function col_has_radio_buttons($k)
        { return $this->fdd[$k]['select'] == 'O' && ! $this->fdd[$k]['values']['table']; }
        function col_has_datemask($k)
        { return isset($this->fdd[$k]['datemask']) || isset($this->fdd[$k]['strftimemask']); }

        /*
         * functions for indicating whether navigation style is enabled
     */

        function nav_buttons()       { return stristr($this->navigation, 'B'); }
        function nav_text_links()    { return stristr($this->navigation, 'T'); }
        function nav_graphic_links() { return stristr($this->navigation, 'G'); }
        function nav_up()            { return (stristr($this->navigation, 'U') && !($this->buttons[$this->page_type]['up'] === false)); }
        function nav_down()          { return (stristr($this->navigation, 'D') && !($this->buttons[$this->page_type]['down'] === false)); }

        /*
         * functions for indicating whether operations are enabled
         */

        function add_enabled()    { return stristr($this->options, 'A'); }
        function change_enabled() { return stristr($this->options, 'C'); }
        function delete_enabled() { return stristr($this->options, 'D'); }
        function filter_enabled() { return stristr($this->options, 'F'); }
        function view_enabled()   { return stristr($this->options, 'V'); }
        function copy_enabled()   { return stristr($this->options, 'P') && $this->add_enabled(); }
        function tabs_enabled()   { return $this->display['tabs'] && count($this->tabs) > 0; }
        function hidden($k)       { return stristr($this->fdd[$k]['input'],'H'); }
        function password($k)     { return stristr($this->fdd[$k]['input'],'W'); }
        function readonly($k)     { return stristr($this->fdd[$k]['input'],'R') || $this->virtual($k);     }
        function virtual($k)      { return stristr($this->fdd[$k]['input'],'V') && $this->col_has_sql($k); }

        function add_operation()    { return $this->operation == $this->labels['Add']    && $this->add_enabled();    }
        function change_operation() { return $this->operation == $this->labels['Change'] && $this->change_enabled(); }
        function copy_operation()   { return $this->operation == $this->labels['Copy']   && $this->copy_enabled();   }
        function delete_operation() { return $this->operation == $this->labels['Delete'] && $this->delete_enabled(); }
        function view_operation()   { return $this->operation == $this->labels['View']   && $this->view_enabled();   }
        function filter_operation() { return $this->fl && $this->filter_enabled() && $this->list_operation(); }
        function list_operation()   { /* covers also filtering page */ return ! $this->change_operation()
                                                                                && ! $this->add_operation()    && ! $this->copy_operation()
                                                                                && ! $this->delete_operation() && ! $this->view_operation(); }
        function next_operation()       { return ($this->navop == $this->labels['Next']) || ($this->navop == '>'); }
        function prev_operation()       { return ($this->navop == $this->labels['Prev']) || ($this->navop == '<'); }
        function first_operation()      { return ($this->navop == $this->labels['First']) || ($this->navop == '<<'); }
        function last_operation()       { return ($this->navop == $this->labels['Last']) || ($this->navop == '>>'); }
        function clear_operation()      { return $this->sw == $this->labels['Clear'];  }

        function add_canceled()    { return $this->canceladd    == $this->labels['Cancel']; }
        function view_canceled()   { return $this->cancelview   == $this->labels['Cancel']; }
        function change_canceled() { return $this->cancelchange == $this->labels['Cancel']; }
        function copy_canceled()   { return $this->cancelcopy   == $this->labels['Cancel']; }
        function delete_canceled() { return $this->canceldelete == $this->labels['Cancel']; }

        function is_values2($k, $val = 'X') /* {{{ */
        {
                return $val === null ||
                        (isset($this->fdd[$k]['values2']) && !isset($this->fdd[$k]['values']['table']));
        } /* }}} */

        function processed($k) /* {{{ */
        {
                if ($this->virtual($k)) {
                        return false;
                }
                $options = @$this->fdd[$k]['options'];
                if (! isset($options)) {
                        return true;
                }
                return
                        ($this->saveadd    == $this->labels['Save']  && stristr($options, 'A')) ||
                        ($this->moreadd    == $this->labels['More']  && stristr($options, 'A')) ||
                        ($this->savechange == $this->labels['Save']  && stristr($options, 'C')) ||
                        ($this->morechange == $this->labels['Apply'] && stristr($options, 'C')) ||
                        ($this->savecopy   == $this->labels['Save']  && stristr($options, 'P')) ||
                        ($this->savedelete == $this->labels['Save']  && stristr($options, 'D'));
        } /* }}} */

        function displayed($k) /* {{{ */
        {
                if (is_numeric($k)) {
                        $k = $this->fds[$k];
                }
                $options = @$this->fdd[$k]['options'];
                if (! isset($options)) {
                        return true;
                }
                return
                        ($this->add_operation()    && stristr($options, 'A')) ||
                        ($this->view_operation()   && stristr($options, 'V')) ||
                        ($this->change_operation() && stristr($options, 'C')) ||
                        ($this->copy_operation()   && stristr($options, 'P')) ||
                        ($this->delete_operation() && stristr($options, 'D')) ||
                        ($this->filter_operation() && stristr($options, 'F')) ||
                        ($this->list_operation()   && stristr($options, 'L'));
        } /* }}} */
        
        function debug_var($name, $val) /* {{{ */
        {
                if (is_array($val) || is_object($val)) {
                        echo "<pre>$name\n";
                        ob_start();
                        //print_r($val);
                        var_dump($val);
                        $content = ob_get_contents();
                        ob_end_clean();
                        echo htmlspecialchars($content);
                        echo "</pre>\n";
                } else {
                        echo 'debug_var()::<i>',htmlspecialchars($name),'</i>';
                        echo '::<b>',htmlspecialchars($val),'</b>::',"<br />\n";
                }
        } /* }}} */

        function myquery($qry, $line = 0, $debug = 0) /* {{{ */
        {
                global $debug_query;
                if ($debug_query || $debug) {
                        $line = intval($line);
                        echo '<h4>MySQL query at line ',$line,'</h4>',htmlspecialchars($qry),'<hr />',"\n";
                }
                if (isset($this->db)) {
                        $ret = @mysql_db_query($this->db, $qry, $this->dbh);
                } else {
                        $ret = @mysql_query($qry, $this->dbh);
                }
                if (! $ret) {
                        echo '<h4>MySQL error ',mysql_errno($this->dbh),'</h4>';
                        echo htmlspecialchars(mysql_error($this->dbh)),'<hr />',"\n";
                }
                return $ret;
        } /* }}} */

        function make_language_labels($language) /* {{{ */
        {
                // just try the first language and variant
                // this isn't content-negotiation rfc compliant
                $language = strtoupper($language);

                // try the full language w/ variant
                $file = $this->dir['lang'].'PME.lang.'.$language.'.inc';

                if (! file_exists($file)) {
                        // try the language w/o variant
                        $file = $this->dir['lang'].'PME.lang.'.substr($language,0,2).'.inc';
                }
                if (! file_exists($file)) {
                        // default to classical English
                        $file = $this->dir['lang'].'PME.lang.EN.inc';
                }
                $ret = @include($file);
                if (! is_array($ret)) {
                        return $ret;
                }
                $small = array(
                                'Search' => 'v',
                                'Hide'   => '^',
                                'Clear'  => 'X',
                                'Query'  => htmlspecialchars('>'));
                if ((!$this->nav_text_links() && !$this->nav_graphic_links())
                                || !isset($ret['Search']) || !isset($ret['Query'])
                                || !isset($ret['Hide'])   || !isset($ret['Clear'])) {
                        foreach ($small as $key => $val) {
                                $ret[$key] = $val;
                        }
                }
                return $ret;
        } /* }}} */

        function set_values($field_num, $prepend = null, $append = null, $strict = false) /* {{{ */
        {
                return (array) $prepend + (array) $this->fdd[$field_num]['values2']
                        + (isset($this->fdd[$field_num]['values']['table']) || $strict
                                        ? $this->set_values_from_table($field_num, $strict)
                                        : array())
                        + (array) $append;
        } /* }}} */

        function set_values_from_table($field_num, $strict = false) /* {{{ */
        {
                $db    = &$this->fdd[$field_num]['values']['db'];
                $table = &$this->fdd[$field_num]['values']['table'];
                $key   = &$this->fdd[$field_num]['values']['column'];
                $desc  = &$this->fdd[$field_num]['values']['description'];
                $dbp   = isset($db) ? "$db." : $this->dbp;
                $qparts['type'] = 'select';
                if ($table) {
                        $qparts['select'] = 'DISTINCT '.$table.'.'.$key;
                        if ($desc && is_array($desc) && is_array($desc['columns'])) {
                                $qparts['select'] .= ',CONCAT('; // )
                                $num_cols = sizeof($desc['columns']);
                                if (isset($desc['divs'][-1])) {
                                        $qparts['select'] .= '"'.addslashes($desc['divs'][-1]).'",';
                                }
                                foreach ($desc['columns'] as $key => $val) {
                                        if ($val) {
                                                $qparts['select'] .= 'IFNULL('.$val.',"")';
                                                if ($desc['divs'][$key]) {
                                                        $qparts['select'] .= ',"'.addslashes($desc['divs'][$key]).'"';
                                                }
                                                $qparts['select'] .= ',';
                                        }
                                }
                                $qparts['select']{strlen($qparts['select']) - 1} = ')';
                                $qparts['select'] .= ' AS PMEalias'.$field_num;
                                $qparts['orderby'] = 'PMEalias'.$field_num;
                        } else if ($desc && is_array($desc)) {
                                // TODO
                        } else if ($desc) {
                                $qparts['select'] .= ','.$table.'.'.$desc;
                                $qparts['orderby'] = $desc;
                        } else if ($key) {
                                $qparts['orderby'] = $key;
                        }
                        $qparts['from'] = "$dbp$table";
                        $ar = array(
                                        'table'       => $table,
                                        'column'      => $column,
                                        'description' => $desc);
                        $qparts['where'] = $this->substituteVars($this->fdd[$field_num]['values']['filters'], $ar);
                        if ($this->fdd[$field_num]['values']['orderby']) {
                                $qparts['orderby'] = $this->substituteVars($this->fdd[$field_num]['values']['orderby'], $ar);
                        }
                } else { /* simple value extraction */
                        $key = &$this->fds[$field_num];
                        $this->virtual($field_num) && $key = $this->fqn($field_num);
                        $qparts['select']  = 'DISTINCT '.$key.' AS PMEkey';
                        $qparts['orderby'] = 'PMEkey';
                        $qparts['from']    = $this->dbp.$this->tb;
                }
                $values = array();
                $res    = $this->myquery($this->get_SQL_query($qparts), __LINE__);
                while ($row = @mysql_fetch_array($res, MYSQL_NUM)) {
                        $values[$row[0]] = $desc ? $row[1] : $row[0];
                }
                return $values;
        } /* }}} */

        function fqn($field, $dont_desc = false, $dont_cols = false) /* {{{ */
        {
                is_numeric($field) || $field = array_search($field, $this->fds);
                // if read SQL expression exists use it
                if ($this->col_has_sql($field))
                        return $this->fdd[$field]['sql'];
                // on copy/change always use simple key retrieving
                if ($this->add_operation()
                                || $this->copy_operation()
                                || $this->change_operation()) {
                                $ret = 'PMEtable0.'.$this->fds[$field];
                } else {
                        if ($this->fdd[$this->fds[$field]]['values']['description'] && ! $dont_desc) {
                                $desc = &$this->fdd[$this->fds[$field]]['values']['description'];
                                if (is_array($desc) && is_array($desc['columns'])) {
                                        $ret      = 'CONCAT('; // )
                                        $num_cols = sizeof($desc['columns']);
                                        if (isset($desc['divs'][-1])) {
                                                $ret .= '"'.addslashes($desc['divs'][-1]).'",';
                                        }
                                        foreach ($desc['columns'] as $key => $val) {
                                                if ($val) {
                                                        $ret .= 'PMEjoin'.$field.'.'.$val;
                                                        if ($desc['divs'][$key]) {
                                                                $ret .= ',"'.addslashes($desc['divs'][$key]).'"';
                                                        }
                                                        $ret .= ',';
                                                }
                                        }
                                        $ret{strlen($ret) - 1} = ')';
                                } else if (is_array($desc)) {
                                        // TODO
                                } else {
                                        $ret = 'PMEjoin'.$field.'.'.$this->fdd[$this->fds[$field]]['values']['description'];
                                }
                        // TODO: remove me
                        } elseif (0 && $this->fdd[$this->fds[$field]]['values']['column'] && ! $dont_cols) {
                                $ret = 'PMEjoin'.$field.'.'.$this->fdd[$this->fds[$field]]['values']['column'];
                        } else {
                                $ret = 'PMEtable0.'.$this->fds[$field];
                        }
                        // TODO: not neccessary, remove me!
                        if (is_array($this->fdd[$this->fds[$field]]['values2'])) {
                        }
                }
                return $ret;
        } /* }}} */

        function get_SQL_query($parts) /* {{{ */
        {
                foreach ($parts as $k => $v) {
                        $parts[$k] = trim($parts[$k]);
                }
                switch ($parts['type']) {
                        case 'select':
                                $ret  = 'SELECT ';
                                if ($parts['DISTINCT'])
                                        $ret .= 'DISTINCT ';
                                $ret .= $parts['select'];
                                $ret .= ' FROM '.$parts['from'];
                                if ($parts['where'] != '')
                                        $ret .= ' WHERE '.$parts['where'];
                                if ($parts['groupby'] != '')
                                        $ret .= ' GROUP BY '.$parts['groupby'];
                                if ($parts['having'] != '')
                                        $ret .= ' HAVING '.$parts['having'];
                                if ($parts['orderby'] != '')
                                        $ret .= ' ORDER BY '.$parts['orderby'];
                                if ($parts['limit'] != '')
                                        $ret .= ' LIMIT '.$parts['limit'];
                                if ($parts['procedure'] != '')
                                        $ret .= ' PROCEDURE '.$parts['procedure'];
                                break;
                        case 'update':
                                $ret  = 'UPDATE '.$parts['table'];
                                $ret .= ' SET '.$parts['fields'];
                                if ($parts['where'] != '')
                                        $ret .= ' WHERE '.$parts['where'];
                                break;
                        case 'insert':
                                $ret  = 'INSERT INTO '.$parts['table'];
                                $ret .= ' VALUES '.$parts['values'];
                                break;
                        case 'delete':
                                $ret  = 'DELETE FROM '.$parts['table'];
                                if ($parts['where'] != '')
                                        $ret .= ' WHERE '.$parts['where'];
                                break;
                        default:
                                die('unknown query type');
                                break;
                }
                return $ret;
        } /* }}} */

        function get_SQL_column_list() /* {{{ */
        {
                $fields = array();
                for ($k = 0; $k < $this->num_fds; $k++) {
                        if (! $this->displayed[$k] && $k != $this->key_num) {
                                continue;
                        }
                        $fields[] = $this->fqn($k).' AS qf'.$k;
                        if ($this->col_has_values($k)) {
                                $fields[] = $this->fqn($k, true, true).' AS qf'.$k.'_idx';
                        }
                        if ($this->col_has_datemask($k)) {
                                $fields[] = 'UNIX_TIMESTAMP('.$this->fqn($k).') AS qf'.$k.'_timestamp';
                        }
                }
                return join(',', $fields);
        } /* }}} */

        function get_SQL_join_clause() /* {{{ */
        {
                $main_table  = 'PMEtable0';
                $join_clause = $this->tb." AS $main_table";
                for ($k = 0, $numfds = sizeof($this->fds); $k < $numfds; $k++) {
                        $main_column = $this->fds[$k];
                        if($this->fdd[$main_column]['values']['db']) {
                                $dbp = $this->fdd[$main_column]['values']['db'].'.';
                        } else {
                                $dbp = $this->dbp;
                        }
                        $table       = @$this->fdd[$main_column]['values']['table'];
                        $join_column = @$this->fdd[$main_column]['values']['column'];
                        $join_desc   = @$this->fdd[$main_column]['values']['description'];
                        if ($join_desc != '' && $join_column != '') {
                                $join_table = 'PMEjoin'.$k;
                                $ar = array(
                                                'main_table'       => $main_table,
                                                'main_column'      => $main_column,
                                                'join_table'       => $join_table,
                                                'join_column'      => $join_column,
                                                'join_description' => $join_desc);
                                $join_clause .= " LEFT OUTER JOIN $dbp$table AS $join_table ON (";
                                $join_clause .= isset($this->fdd[$main_column]['values']['join'])
                                        ? $this->substituteVars($this->fdd[$main_column]['values']['join'], $ar)
                                        : "$join_table.$join_column = $main_table.$main_column";
                                if (isset($this->fdd[$main_column]['values']['filters'])) {
                                        $join_clause .= ' AND ';
                                        $join_clause .= $this->substituteVars($this->fdd[$main_column]['values']['filters'], $ar);
                                }
                                $join_clause .= ')';
                        }
                }
                return $join_clause;
        } /* }}} */

        function get_SQL_where_from_query_opts($qp = null, $text = 0) /* {{{ */
        {
                if ($qp == null) {
                        $qp = $this->query_opts;
                }
                $where = array();
                foreach ($qp as $field => $ov) {
                        if (is_numeric($field)) {
                                $tmp_where = array();
                                foreach ($ov as $field2 => $ov2) {
                                        $tmp_where[] = sprintf('%s %s %s', $field2, $ov2['oper'], $ov2['value']);
                                }
                                $where[] = '('.join(' OR ', $tmp_where).')';
                        } else {
                                if (is_array($ov['value'])) {
                                        $tmp_ov_val = '';
                                        foreach ($ov['value'] as $ov_val) {
                                                strlen($tmp_ov_val) > 0 && $tmp_ov_val .= ' OR ';
                                                $tmp_ov_val .= sprintf('FIND_IN_SET("%s",%s)', $ov_val, $field);
                                        }
                                        $where[] = "($tmp_ov_val)";
                                } else {
                                        $where[] = sprintf('%s %s %s', $field, $ov['oper'], $ov['value']);
                                }
                        }
                }
                // Add any coder specified filters
                if (! $text && $this->filters) {
                        $where[] = '('.$this->filters.')';
                }
                if (count($where) > 0) {
                        if ($text) {
                                return str_replace('%', '*', join(' AND ',$where));
                        } else {
                                return join(' AND ',$where);
                        }
                }
                return ''; /* empty string */
        } /* }}} */

        function gather_query_opts() /* {{{ */
        {
                $this->query_opts = array();
                $this->prev_qfn   = $this->qfn;
                $this->qfn        = '';
                if ($this->clear_operation()) {
                        return;
                }
                // gathers query options into an array, $this->query_opts
                $qo = array();
                for ($k = 0; $k < $this->num_fds; $k++) {
                        $l    = 'qf'.$k;
                        $lc   = 'qf'.$k.'_comp';
                        $li   = 'qf'.$k.'_id';
                        $m    = $this->get_sys_cgi_var($l);
                        $mc   = $this->get_sys_cgi_var($lc);
                        $mi   = $this->get_sys_cgi_var($li);
                        if (! isset($m) && ! isset($mi)) {
                                continue;
                        }
                        if (is_array($m) || is_array($mi)) {
                                if (is_array($mi)) {
                                        $m = $mi;
                                        $l = $li;
                                }
                                if (in_array('*', $m)) {
                                        continue;
                                }
                                if ($this->col_has_values($k) && $this->col_has_multiple($k)) {
                                        foreach (array_keys($m) as $key) {
                                                $m[$key] = addslashes($m[$key]);
                                        }
                                        $qo[$this->fqn($k)] = array('value' => $m);
                                } else {
                                        $qf_op = '';
                                        foreach (array_keys($m) as $key) {
                                                if ($qf_op == '') {
                                                        $qf_op   = 'IN';
                                                        $qf_val  = '"'.addslashes($m[$key]).'"';
                                                        $afilter = ' IN ("'.addslashes($m[$key]).'"'; // )
                                                } else {
                                                        $afilter = $afilter.',"'.addslashes($m[$key]).'"';
                                                        $qf_val .= ',"'.addslashes($m[$key]).'"';
                                                }
                                                $this->qfn .= '&'.$this->cgi['prefix']['sys'].$l.'['.rawurlencode($key).']='.rawurlencode($m[$key]);
                                        }
                                        $afilter = $afilter.')';
                                        // XXX: $dont_desc and $dont_cols hack
                                        $dont_desc = isset($this->fdd[$k]['values']['description']);
                                        $dont_cols = isset($this->fdd[$k]['values']['column']);
                                        $qo[$this->fqn($k, $dont_desc, $dont_cols)] =
                                                array('oper'  => $qf_op, 'value' => "($qf_val)"); // )
                                }
                        } else if (isset($mi)) {
                                if ($mi == '*') {
                                        continue;
                                }
                                if ($this->fdd[$k]['select'] != 'M' && $this->fdd[$k]['select'] != 'D' && $mi == '') {
                                        continue;
                                }
                                $afilter = addslashes($mi);
                                $qo[$this->fqn($k, true, true)] = array('oper'  => '=', 'value' => "'$afilter'");
                                $this->qfn .= '&'.$this->cgi['prefix']['sys'].$li.'='.rawurlencode($mi);
                        } else if (isset($m)) {
                                if ($m == '*') {
                                        continue;
                                }
                                if ($this->fdd[$k]['select'] != 'M' && $this->fdd[$k]['select'] != 'D' && $m == '') {
                                        continue;
                                }
                                $afilter = addslashes($m);
                                if ($this->fdd[$k]['select'] == 'N') {
                                        $mc = in_array($mc, $this->comp_ops) ? $mc : '=';
                                        $qo[$this->fqn($k)] = array('oper' => $mc, 'value' => "'$afilter'");
                                        $this->qfn .= '&'.$this->cgi['prefix']['sys'].$l .'='.rawurlencode($m);
                                        $this->qfn .= '&'.$this->cgi['prefix']['sys'].$lc.'='.rawurlencode($mc);
                                } else {
                                        $afilter = '%'.str_replace('*', '%', $afilter).'%';
                                        $ids  = array();
                                        $ar   = array();
                                        $ar[$this->fqn($k)] = array('oper' => 'LIKE', 'value' => "'$afilter'");
                                        if (is_array($this->fdd[$k]['values2'])) {
                                                foreach ($this->fdd[$k]['values2'] as $key => $val) {
                                                        if (strlen($m) > 0 && stristr($val, $m)) {
                                                                $ids[] = '"'.addslashes($key).'"';
                                                        }
                                                }
                                                if (count($ids) > 0) {
                                                        $ar[$this->fqn($k, true, true)]
                                                                = array('oper'  => 'IN', 'value' => '('.join(',', $ids).')');
                                                }
                                        }
                                        $qo[] = $ar;
                                        $this->qfn .= '&'.$this->cgi['prefix']['sys'].$l.'='.rawurlencode($m);
                                }
                        }
                }
                $this->query_opts = $qo;
        } /* }}} */

        /*
         * Create JavaScripts
         */

        function form_begin() /* {{{ */
        {
                $page_name = htmlspecialchars($this->page_name);
                if ($this->add_operation() || $this->change_operation() || $this->copy_operation()
                                || $this->view_operation() || $this->delete_operation()) {
                        $field_to_tab = array();
                        for ($tab = $k = $this->cur_tab = 0; $k < $this->num_fds; $k++) {
                                if (isset($this->fdd[$k]['tab'])) {
                                        if ($tab == 0 && $k > 0) {
                                                $this->tabs[0] = 'PMEtab0';
                                                $this->cur_tab = 1;
                                                $tab++;
                                        }
                                        if (is_array($this->fdd[$k]['tab'])) {
                                                $this->tabs[$tab] = @$this->fdd[$k]['tab']['name'];
                                                $this->fdd[$k]['tab']['default'] && $this->cur_tab = $tab;
                                        } else {
                                                $this->tabs[$tab] = @$this->fdd[$k]['tab'];
                                        }
                                        $tab++;
                                }
                                $field_to_tab[$k] = max(0, $tab - 1);
                        }
                        if (preg_match('/^'.$this->dhtml['prefix'].'tab(\d+)$/', $this->get_sys_cgi_var('cur_tab'), $parts)) {
                                $this->cur_tab = $parts[1];
                        }
                        if ($this->tabs_enabled()) {
                                // initial TAB styles
                                echo '<style type="text/css" media="screen">',"\n";
                                for ($i = 0; $i < count($this->tabs); $i++) {
                                        echo '  #'.$this->dhtml['prefix'].'tab',$i,' { display: ';
                                        echo (($i == $this->cur_tab || $this->tabs[$i] == 'PMEtab0' ) ? 'block' : 'none') ,'; }',"\n";
                                }
                                echo '</style>',"\n";
                                // TAB javascripts
                                echo '<script type="text/javascript"><!--',"\n\n";
                                $css_class_name1 = $this->getCSSclass('tab', $position);
                                $css_class_name2 = $this->getCSSclass('tab-selected', $position);
                                echo 'var '.$this->js['prefix'].'cur_tab  = "'.$this->dhtml['prefix'].'tab',$this->cur_tab,'";

function '.$this->js['prefix'].'show_tab(tab_name)
{';
                                if ($this->nav_up()) {
                                        echo '
        document.getElementById('.$this->js['prefix'].'cur_tab+"_up_label").className = "',$css_class_name1,'";
        document.getElementById('.$this->js['prefix'].'cur_tab+"_up_link").className = "',$css_class_name1,'";
        document.getElementById(tab_name+"_up_label").className = "',$css_class_name2,'";
        document.getElementById(tab_name+"_up_link").className = "',$css_class_name2,'";';
                                }
                                if ($this->nav_down()) {
                                        echo '
        document.getElementById('.$this->js['prefix'].'cur_tab+"_down_label").className = "',$css_class_name1,'";
        document.getElementById('.$this->js['prefix'].'cur_tab+"_down_link").className = "',$css_class_name1,'";
        document.getElementById(tab_name+"_down_label").className = "',$css_class_name2,'";
        document.getElementById(tab_name+"_down_link").className = "',$css_class_name2,'";';
                                }
                                echo '
        document.getElementById('.$this->js['prefix'].'cur_tab).style.display = "none";
        document.getElementById(tab_name).style.display = "block";
        '.$this->js['prefix'].'cur_tab = tab_name;
        document.'.$this->cgi['prefix']['sys'].'form.'.$this->cgi['prefix']['sys'].'cur_tab.value = tab_name;
}',"\n\n";
                                echo '// --></script>', "\n";
                        }
                }

                if ($this->add_operation() || $this->change_operation() || $this->copy_operation()) {
                        $first_required = true;
                        for ($k = 0; $k < $this->num_fds; $k++) {
                                if ($this->displayed[$k] && ! $this->readonly($k) && ! $this->hidden($k)
                                                && ($this->fdd[$k]['js']['required'] || isset($this->fdd[$k]['js']['regexp']))) {
                                        if ($first_required) {
                                                $first_required = false;
                                                echo '<script type="text/javascript"><!--',"\n";
                                                echo '
function '.$this->js['prefix'].'trim(str)
{
        while (str.substring(0, 1) == " "
                        || str.substring(0, 1) == "\\n"
                        || str.substring(0, 1) == "\\r")
        {
                str = str.substring(1, str.length);
        }
        while (str.substring(str.length - 1, str.length) == " "
                        || str.substring(str.length - 1, str.length) == "\\n"
                        || str.substring(str.length - 1, str.length) == "\\r")
        {
                str = str.substring(0, str.length - 1);
        }
        return str;
}

function '.$this->js['prefix'].'form_control(theForm)
{',"\n";
                                        }
                                        if ($this->col_has_values($k)) {
                                                $condition = 'theForm.'.$this->cgi['prefix']['data'].$this->fds[$k].'.selectedIndex == -1';
                                                $multiple  = $this->col_has_multiple_select($k);
                                        } else {
                                                $condition = '';
                                                $multiple  = false;
                                                if ($this->fdd[$k]['js']['required']) {
                                                        $condition = $this->js['prefix'].'trim(theForm.'.$this->cgi['prefix']['data'].$this->fds[$k].'.value) == ""';
                                                }
                                                if (isset($this->fdd[$k]['js']['regexp'])) {
                                                        $condition .= (strlen($condition) > 0 ? ' || ' : '');
                                                        $condition .= sprintf('!(%s.test('.$this->js['prefix'].'trim(theForm.%s.value)))',
                                                                        $this->fdd[$k]['js']['regexp'], $this->cgi['prefix']['data'].$this->fds[$k]);
                                                }
                                        }

                                        /* Multiple selects have their name like ``name[]''.
                                           It is not possible to work with them directly, because
                                           theForm.name[].something will result into JavaScript
                                           syntax error. Following search algorithm is provided
                                           as a workaround for this.
                                         */
                                        if ($multiple) {
                                                echo '
        multiple_select = null;
        for (i = 0; i < theForm.length; i++) {
                if (theForm.elements[i].name == "',$this->cgi['prefix']['data'].$this->fds[$k],'[]") {
                        multiple_select = theForm.elements[i];
                        break;
                }
        }
        if (multiple_select != null && multiple_select.selectedIndex == -1) {';
                                        } else {
                                                echo '
        if (',$condition,') {';
                                        }
                                        echo '
                alert("';
                                        if (isset($this->fdd[$k]['js']['hint'])) {
                                                echo htmlspecialchars($this->fdd[$k]['js']['hint']);
                                        } else {
                                                echo $this->labels['Please enter'],' ',$this->fdd[$k]['name'],'.';
                                        }
                                        echo '");';
                                        if ($this->tabs_enabled() && $field_to_tab[$k] >= $this->cur_tab) {
                                                echo '
                '.$this->js['prefix'].'show_tab("'.$this->dhtml['prefix'].'tab',$field_to_tab[$k],'");';
                                        }
                                        echo '
                theForm.',$this->cgi['prefix']['data'].$this->fds[$k],'.focus();
                return false;
        }',"\n";
                                }
                        }
                        if (! $first_required) {
                                echo '
        return true;
}',"\n\n";
                                echo '// --></script>', "\n";
                        }
                }

                if ($this->filter_operation()) {
                                echo '<script type="text/javascript"><!--',"\n";
                                echo '
function '.$this->js['prefix'].'filter_handler(theForm, theEvent)
{
        var pressed_key = null;
        if (theEvent.which) {
                pressed_key = theEvent.which;
        } else {
                pressed_key = theEvent.keyCode;
        }
        if (pressed_key == 13) { // enter pressed
                theForm.submit();
                return false;
        }
        return true;
}',"\n\n";
                                echo '// --></script>', "\n";
                }

                if ($this->display['form']) {
                        echo '<form class="',$this->getCSSclass('form'),'" method="post"';
                        echo ' action="',$page_name,'" name="'.$this->cgi['prefix']['sys'].'form">',"\n";
                }
                return true;
        } /* }}} */

        function form_end() /* {{{ */
        {
                if ($this->display['form']) {
                        echo '</form>',"\n";
                }
        } /* }}} */

        function display_tab_labels($position) /* {{{ */
        {
                if (! is_array($this->tabs)) {
                        return false;
                }
                echo '<table summary="labels" class="',$this->getCSSclass('tab', $position),'">',"\n";
                echo '<tr class="',$this->getCSSclass('tab', $position),'">',"\n";
                for ($i = ($this->tabs[0] == 'PMEtab0' ? 1 : 0); $i < count($this->tabs); $i++) {
                        $css_class_name = $this->getCSSclass($i != $this->cur_tab ? 'tab' : 'tab-selected', $position);
                        echo '<td class="',$css_class_name,'" id="'.$this->dhtml['prefix'].'tab',$i,'_',$position,'_label">';
                        echo '<a class="',$css_class_name,'" id="'.$this->dhtml['prefix'].'tab',$i,'_',$position,'_link';
                        echo '" href="javascript:'.$this->js['prefix'].'show_tab(\''.$this->dhtml['prefix'].'tab',$i,'\')">';
                        echo $this->tabs[$i],'</a></td>',"\n";
                }
                echo '<td class="',$this->getCSSclass('tab-end', $position),'">&nbsp;</td>',"\n";
                echo '</tr>',"\n";
                echo '</table>',"\n";
        } /* }}} */

        /*
         * Display functions
         */

        function display_add_record() /* {{{ */
        {
                for ($tab = 0, $k = 0; $k < $this->num_fds; $k++) {
                        if (isset($this->fdd[$k]['tab']) && $this->tabs_enabled() && $k > 0) {
                                $tab++;
                                echo '</table>',"\n";
                                echo '</div>',"\n";
                                echo '<div id="'.$this->dhtml['prefix'].'tab',$tab,'">',"\n";
                                echo '<table class="',$this->getCSSclass('main'),'" summary="',$this->tb,'">',"\n";
                        }
                        if (! $this->displayed[$k]) {
                                continue;
                        }
                        if ($this->hidden($k)) {
                                echo $this->htmlHiddenData($this->fds[$k], $this->fdd[$k]['default']);
                                continue;
                        }
                        $css_postfix    = @$this->fdd[$k]['css']['postfix'];
                        $css_class_name = $this->getCSSclass('input', null, 'next', $css_postfix);
                        $escape                 = isset($this->fdd[$k]['escape']) ? $this->fdd[$k]['escape'] : true;
                        echo '<tr class="',$this->getCSSclass('row', null, true, $css_postfix),'">',"\n";
                        echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'">';
                        echo $this->fdd[$k]['name'],'</td>',"\n";
                        echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'"';
                        echo $this->getColAttributes($k),">\n";
                        if ($this->col_has_values($k)) {
                                $vals       = $this->set_values($k);
                                $selected   = @$this->fdd[$k]['default'];
                                $multiple   = $this->col_has_multiple($k);
                                $readonly   = $this->readonly($k);
                                $strip_tags = true;
                                //$escape     = true;
                                if ($this->col_has_checkboxes($k) || $this->col_has_radio_buttons($k)) {
                                        echo $this->htmlRadioCheck($this->cgi['prefix']['data'].$this->fds[$k],
                                                        $css_class_name, $vals, $selected, $multiple, $readonly,
                                                        $strip_tags, $escape);
                                } else {
                                        echo $this->htmlSelect($this->cgi['prefix']['data'].$this->fds[$k],
                                                        $css_class_name, $vals, $selected, $multiple, $readonly,
                                                        $strip_tags, $escape);
                                }
                        } elseif (isset ($this->fdd[$k]['textarea'])) {
                                echo '<textarea class="',$css_class_name,'" name="',$this->cgi['prefix']['data'].$this->fds[$k],'"';
                                echo ($this->readonly($k) ? ' disabled="disabled"' : '');
                                if (intval($this->fdd[$k]['textarea']['rows']) > 0) {
                                        echo ' rows="',$this->fdd[$k]['textarea']['rows'],'"';
                                }
                                if (intval($this->fdd[$k]['textarea']['cols']) > 0) {
                                        echo ' cols="',$this->fdd[$k]['textarea']['cols'],'"';
                                }
                                if (isset($this->fdd[$k]['textarea']['wrap'])) {
                                        echo ' wrap="',$this->fdd[$k]['textarea']['wrap'],'"';
                                } else {
                                        echo ' wrap="virtual"';
                                }
                                echo '>';
                                if($escape) echo htmlspecialchars($this->fdd[$k]['default']);
                                else echo $this->fdd[$k]['default'];
                                echo '</textarea>',"\n";
                        } elseif ($this->col_has_php($k)) {
                                echo include($this->fdd[$k]['php']);
                        } else {
                                // Simple edit box required
                                $size_ml_props = '';
                                $maxlen = intval($this->fdd[$k]['maxlen']);
                                $size   = isset($this->fdd[$k]['size']) ? $this->fdd[$k]['size'] : min($maxlen, 60); 
                                $size   && $size_ml_props .= ' size="'.$size.'"';
                                $maxlen && $size_ml_props .= ' maxlength="'.$maxlen.'"';
                                echo '<input class="',$css_class_name,'" ';
                                echo ($this->password($k) ? 'type="password"' : 'type="text"');
                                echo ($this->readonly($k) ? ' disabled="disabled"' : '');
                                echo ' name="',$this->cgi['prefix']['data'].$this->fds[$k],'"';
                                echo $size_ml_props,' value="';
                                if($escape) echo htmlspecialchars($this->fdd[$k]['default']);
                            else echo $this->fdd[$k]['default'];
                                echo '" />';
                        }
                        echo '</td>',"\n";
                        if ($this->guidance) {
                                $css_class_name = $this->getCSSclass('help', null, true, $css_postfix);
                                $cell_value     = $this->fdd[$k]['help'] ? $this->fdd[$k]['help'] : '&nbsp;';
                                echo '<td class="',$css_class_name,'">',$cell_value,'</td>',"\n";
                        }
                        echo '</tr>',"\n";
                }
        } /* }}} */

        function display_copy_change_delete_record() /* {{{ */
        {
                /*
                 * For delete or change: SQL SELECT to retrieve the selected record
                 */

                $qparts['type']   = 'select';
                $qparts['select'] = $this->get_SQL_column_list();
                $qparts['from']   = $this->get_SQL_join_clause();
                $qparts['where']  = '('.$this->fqn($this->key).'='
                        .$this->key_delim.$this->rec.$this->key_delim.')';

                $res = $this->myquery($this->get_SQL_query($qparts),__LINE__);
                if (! ($row = @mysql_fetch_array($res, MYSQL_ASSOC))) {
                        return false;
                }
                for ($tab = 0, $k = 0; $k < $this->num_fds; $k++) {
                        if (isset($this->fdd[$k]['tab']) && $this->tabs_enabled() && $k > 0) {
                                $tab++;
                                echo '</table>',"\n";
                                echo '</div>',"\n";
                                echo '<div id="'.$this->dhtml['prefix'].'tab',$tab,'">',"\n";
                                echo '<table class="',$this->getCSSclass('main'),'" summary="',$this->tb,'">',"\n";
                        }
                        if (! $this->displayed[$k]) {
                                continue;
                        }
                        if ($this->copy_operation() || $this->change_operation()) {
                                if ($this->hidden($k)) {
                                        if ($k != $this->key_num) {
                                                echo $this->htmlHiddenData($this->fds[$k], $row["qf$k"]);
                                        }
                                        continue;
                                }
                                $css_postfix = @$this->fdd[$k]['css']['postfix'];
                                echo '<tr class="',$this->getCSSclass('row', null, 'next', $css_postfix),'">',"\n";
                                echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'">';
                                echo $this->fdd[$k]['name'],'</td>',"\n";
                                /* There are two possibilities of readonly fields handling:
                                   1. Display plain text for readonly timestamps, dates and URLs.
                                   2. Display disabled input field
                                   In all cases particular readonly field will NOT be saved. */
                                if ($this->readonly($k) && ($this->col_has_datemask($k) || $this->col_has_URL($k))) {
                                        echo $this->display_delete_field($row, $k);
                                } elseif ($this->password($k)) {
                                        echo $this->display_password_field($row, $k);
                                } else {
                                        echo $this->display_change_field($row, $k);
                                }
                                if ($this->guidance) {
                                        $css_class_name = $this->getCSSclass('help', null, true, $css_postfix);
                                        $cell_value     = $this->fdd[$k]['help'] ? $this->fdd[$k]['help'] : '&nbsp;';
                                        echo '<td class="',$css_class_name,'">',$cell_value,'</td>',"\n";
                                }
                                echo '</tr>',"\n";
                        } elseif ($this->delete_operation() || $this->view_operation()) {
                                $css_postfix = @$this->fdd[$k]['css']['postfix'];
                                echo '<tr class="',$this->getCSSclass('row', null, 'next', $css_postfix),'">',"\n";
                                echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'">';
                                echo $this->fdd[$k]['name'],'</td>',"\n";
                                if ($this->password($k)) {
                                        echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'"';
                                        echo $this->getColAttributes($k),'>',$this->labels['hidden'],'</td>',"\n";
                                } else {
                                        $this->display_delete_field($row, $k);
                                }
                                if ($this->guidance) {
                                        $css_class_name = $this->getCSSclass('help', null, true, $css_postfix);
                                        $cell_value     = $this->fdd[$k]['help'] ? $this->fdd[$k]['help'] : '&nbsp;';
                                        echo '<td class="',$css_class_name,'">',$cell_value,'</td>',"\n";
                                }
                                echo '</tr>',"\n";
                        }
                }
        } /* }}} */

        function display_change_field($row, $k) /* {{{ */ 
        {
                $css_postfix    = @$this->fdd[$k]['css']['postfix'];
                $css_class_name = $this->getCSSclass('input', null, true, $css_postfix);
                $escape         = isset($this->fdd[$k]['escape']) ? $this->fdd[$k]['escape'] : true;
                echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'"';
                echo $this->getColAttributes($k),">\n";
                if ($this->col_has_values($k)) {
                        $vals       = $this->set_values($k);
                        $multiple   = $this->col_has_multiple($k);
                        $readonly   = $this->readonly($k);
                        $strip_tags = true;
                        //$escape     = true;
                        if ($this->col_has_checkboxes($k) || $this->col_has_radio_buttons($k)) {
                                echo $this->htmlRadioCheck($this->cgi['prefix']['data'].$this->fds[$k],
                                                $css_class_name, $vals, $row["qf$k"], $multiple, $readonly,
                                                $strip_tags, $escape);
                        } else {
                                echo $this->htmlSelect($this->cgi['prefix']['data'].$this->fds[$k],
                                                $css_class_name, $vals, $row["qf$k"], $multiple, $readonly,
                                                $strip_tags, $escape);
                        }
                } elseif (isset($this->fdd[$k]['textarea'])) {
                        echo '<textarea class="',$css_class_name,'" name="',$this->cgi['prefix']['data'].$this->fds[$k],'"';
                        echo ($this->readonly($k) ? ' disabled="disabled"' : '');
                        if (intval($this->fdd[$k]['textarea']['rows']) > 0) {
                                echo ' rows="',$this->fdd[$k]['textarea']['rows'],'"';
                        }
                        if (intval($this->fdd[$k]['textarea']['cols']) > 0) {
                                echo ' cols="',$this->fdd[$k]['textarea']['cols'],'"';
                        }
                        if (isset($this->fdd[$k]['textarea']['wrap'])) {
                                echo ' wrap="',$this->fdd[$k]['textarea']['wrap'],'"';
                        } else {
                                echo ' wrap="virtual"';
                        }
                        echo '>';
                        if($escape) echo htmlspecialchars($row["qf$k"]);
                        else echo $row["qf$k"];
                        echo '</textarea>',"\n";
                } elseif ($this->col_has_php($k)) {
                        echo include($this->fdd[$k]['php']);
                } else {
                        $size_ml_props = '';
                        $maxlen = intval($this->fdd[$k]['maxlen']);
                        $size   = isset($this->fdd[$k]['size']) ? $this->fdd[$k]['size'] : min($maxlen, 60); 
                        $size   && $size_ml_props .= ' size="'.$size.'"';
                        $maxlen && $size_ml_props .= ' maxlength="'.$maxlen.'"';
                        echo '<input class="',$css_class_name,'" type="text" ';
                        echo ($this->readonly($k) ? 'disabled="disabled" ' : '');
                        echo 'name="',$this->cgi['prefix']['data'].$this->fds[$k],'" value="';
                        if($escape) echo htmlspecialchars($row["qf$k"]);
                        else echo $row["qf$k"];
                        echo '" />',"\n";
                }
                echo '</td>',"\n";
        } /* }}} */

        function display_password_field($row, $k) /* {{{ */
        {
                $css_postfix = @$this->fdd[$k]['css']['postfix'];
                echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'"';
                echo $this->getColAttributes($k),">\n";
                $size_ml_props = '';
                $maxlen = intval($this->fdd[$k]['maxlen']);
                $size   = isset($this->fdd[$k]['size']) ? $this->fdd[$k]['size'] : min($maxlen, 60); 
                $size   && $size_ml_props .= ' size="'.$size.'"';
                $maxlen && $size_ml_props .= ' maxlength="'.$maxlen.'"';
                echo '<input class="',$this->getCSSclass('value', null, true, $css_postfix),'" type="password" ';
                echo ($this->readonly($k) ? 'disabled="disabled" ' : '');
                echo 'name="',$this->cgi['prefix']['data'].$this->fds[$k],'" value="';
                echo htmlspecialchars($row["qf$k"]),'" ',$size_ml_props,' />',"\n";
                echo '</td>',"\n";
        } /* }}} */

        function display_delete_field($row, $k) /* {{{ */
        {
                $css_postfix    = @$this->fdd[$k]['css']['postfix'];
                $css_class_name = $this->getCSSclass('value', null, true, $css_postfix);
                echo '<td class="',$css_class_name,'"',$this->getColAttributes($k),">\n";
                echo $this->cellDisplay($k, $row, $css_class_name);
                echo '</td>',"\n";
        } /* }}} */

        /**
         * Returns CSS class name
         */
        function getCSSclass($name, $position  = null, $divider = null, $postfix = null) /* {{{ */
        {
                static $div_idx = -1;
                $elements = array($this->css['prefix'], $name);
                if ($this->page_type && $this->css['page_type']) {
                        if ($this->page_type != 'L' && $this->page_type != 'F') {
                                $elements[] = $this->page_types[$this->page_type];
                        }
                }
                if ($position && $this->css['position']) {
                        $elements[] = $position;
                }
                if ($divider && $this->css['divider']) {
                        if ($divider === 'next') {
                                $div_idx++;
                                if ($this->css['divider'] > 0 && $div_idx >= $this->css['divider']) {
                                        $div_idx = 0;
                                }
                        }
                        $elements[] = $div_idx;
                }
                if ($postfix) {
                        $elements[] = $postfix;
                }
                return join($this->css['separator'], $elements);
        } /* }}} */

        /**
         * Returns field cell HTML attributes
         */
        function getColAttributes($k) /* {{{ */
        {
                $colattrs = '';
                if (isset($this->fdd[$k]['colattrs'])) {
                        $colattrs .= ' ';
                        $colattrs .= trim($this->fdd[$k]['colattrs']);
                }
                if (isset($this->fdd[$k]['nowrap'])) {
                        $colattrs .= ' nowrap';
                }
                return $colattrs;
        } /* }}} */

        /**
         * Substitutes variables in string
         * (this is very simple but secure eval() replacement)
         */
        function substituteVars($str, $subst_ar) /* {{{ */
        {
                $array = preg_split('/(\\$\w+)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE);
                $count = count($array);
                for ($i = 1; $i < $count; $i += 2) {
                        $key = substr($array[$i], 1);
                        if (isset($subst_ar[$key])) {
                                $array[$i] = $subst_ar[$key];
                        }
                }
                return join('', $array);
        } /* }}} */

        /**
         * Print URL
         */
        function urlDisplay($k, $link_val, $disp_val, $css, $key) /* {{{ */
        {
                $escape = isset($this->fdd[$k]['escape']) ? $this->fdd[$k]['escape'] : true;
                $ret  = '';
                $name = $this->fds[$k];
                $page = $this->page_name;
                $url  = $this->cgi['prefix']['sys'].'rec'.'='.$key.'&'.$this->cgi['prefix']['sys'].'fm'
                        .'='.$this->fm.'&'.$this->cgi['prefix']['sys'].'fl'.'='.$this->fl;
                $url .= '&'.$this->cgi['prefix']['sys'].'qfn'.'='.rawurlencode($this->qfn).$this->qfn;
                $url .= '&'.$this->get_sfn_cgi_vars().$this->cgi['persist'];
                $ar   = array(
                                'key'   => $key,
                                'name'  => $name,
                                'link'  => $link_val,
                                'value' => $disp_val,
                                'css'   => $css,
                                'page'  => $page,
                                'url'   => $url
                                );
                $urllink = isset($this->fdd[$k]['URL'])
                        ?  $this->substituteVars($this->fdd[$k]['URL'], $ar)
                        : $link_val;
                $urldisp = isset($this->fdd[$k]['URLdisp'])
                        ?  $this->substituteVars($this->fdd[$k]['URLdisp'], $ar)
                        : $disp_val;
                $target = isset($this->fdd[$k]['URLtarget'])
                        ? 'target="'.htmlspecialchars($this->fdd[$k]['URLtarget']).'" '
                        : '';
                $prefix_found  = false;
                $postfix_found = false;
                $prefix_ar     = @$this->fdd[$k]['URLprefix'];
                $postfix_ar    = @$this->fdd[$k]['URLpostfix'];
                is_array($prefix_ar)  || $prefix_ar  = array($prefix_ar);
                is_array($postfix_ar) || $postfix_ar = array($postfix_ar);
                foreach ($prefix_ar as $prefix) {
                        if (! strncmp($prefix, $urllink, strlen($prefix))) {
                                $prefix_found = true;
                                break;
                        }
                }
                foreach ($postfix_ar as $postfix) {
                        if (! strncmp($postfix, $urllink, strlen($postfix))) {
                                $postfix_found = true;
                                break;
                        }
                }
                $prefix_found  || $urllink = array_shift($prefix_ar).$urllink;
                $postfix_found || $urllink = $urllink.array_shift($postfix_ar);
                if (strlen($urllink) <= 0 || strlen($urldisp) <= 0) {
                        $ret = '&nbsp;';
                } else {
                        if ($escape) {
                                $urldisp = htmlspecialchars($urldisp);
                        }
                        $urllink = htmlspecialchars($urllink);
                        $ret = '<a '.$target.'class="'.$css.'" href="'.$urllink.'">'.$urldisp.'</a>';
                }
                return $ret;
        } /* }}} */

        function cellDisplay($k, $row, $css) /* {{{ */
        {
                $escape  = isset($this->fdd[$k]['escape']) ? $this->fdd[$k]['escape'] : true;
                $key_rec = $row['qf'.$this->key_num];
                if (@$this->fdd[$k]['datemask']) {
                        $value = intval($row["qf$k".'_timestamp']);
                        $value = $value ? @date($this->fdd[$k]['datemask'], $value) : '';
                } else if (@$this->fdd[$k]['strftimemask']) {
                        $value = intval($row["qf$k".'_timestamp']);
                        $value = $value ? @strftime($this->fdd[$k]['strftimemask'], $value) : '';
                } else if ($this->is_values2($k, $row["qf$k"])) {
                        $value = $row['qf'.$k.'_idx'];
                        if ($this->fdd[$k]['select'] == 'M') {
                                $value_ar  = explode(',', $value);
                                $value_ar2 = array();
                                foreach ($value_ar as $value_key) {
                                        if (isset($this->fdd[$k]['values2'][$value_key])) {
                                                $value_ar2[$value_key] = $this->fdd[$k]['values2'][$value_key];
                                                $escape = false;
                                        }
                                }
                                $value = join(', ', $value_ar2);
                        } else {
                                if (isset($this->fdd[$k]['values2'][$value])) {
                                        $value  = $this->fdd[$k]['values2'][$value];
                                        $escape = false;
                                }
                        }
                } elseif (isset($this->fdd[$k]['values2'][$row["qf$k"]])) {
                        $value = $this->fdd[$k]['values2'][$row["qf$k"]];
                } else {
                        $value = $row["qf$k"];
                }
                $original_value = $value;
                if (@$this->fdd[$k]['strip_tags']) {
                        $value = strip_tags($value);
                }
                if ($num_ar = @$this->fdd[$k]['number_format']) {
                        if (! is_array($num_ar)) {
                                $num_ar = array($num_ar);
                        }
                        if (count($num_ar) == 1) {
                                list($nbDec) = $num_ar;
                                $value = number_format($value, $nbDec);
                        } else if (count($num_ar) == 3) {
                                list($nbDec, $decPoint, $thSep) = $num_ar;
                                $value = number_format($value, $nbDec, $decPoint, $thSep);
                        }
                }
                if (intval($this->fdd[$k]['trimlen']) > 0 && strlen($value) > $this->fdd[$k]['trimlen']) {
                        $value = ereg_replace("[\r\n\t ]+",' ',$value);
                        $value = substr($value, 0, $this->fdd[$k]['trimlen'] - 3).'...';
                }
                if (@$this->fdd[$k]['mask']) {
                        $value = sprintf($this->fdd[$k]['mask'], $value);
                }
                if ($this->col_has_php($k)) {
                        return include($this->fdd[$k]['php']);
                }
                if ($this->col_has_URL($k)) {
                        return $this->urlDisplay($k, $original_value, $value, $css, $key_rec);
                }
                if (strlen($value) <= 0) {
                        return '&nbsp;';
                }
                if ($escape) {
                        $value = htmlspecialchars($value);
                }
                return nl2br($value);
        } /* }}} */

        /**
         * Creates HTML submit input element
         *
         * @param       name                    element name
         * @param       label                   key in the language hash used as label
         * @param       css_class_name  CSS class name
         * @param       js_validation   if add JavaScript validation subroutine to button
         * @param       disabled                if mark the button as disabled
         * @param       js              any extra text in tags
         */
        function htmlSubmit($name, $label, $css_class_name, $js_validation = true, $disabled = false, $js = NULL) /* {{{ */
        {
                // Note that <input disabled> isn't valid HTML, but most browsers support it
                if($disabled == -1) return;
                $markdisabled = $disabled ? ' disabled="disabled"' : '';
                $ret = '<input'.$markdisabled.' type="submit" class="'.$css_class_name
                        .'" name="'.$this->cgi['prefix']['sys'].ltrim($markdisabled).$name
                        .'" value="'.(isset($this->labels[$label]) ? $this->labels[$label] : $label);
                if ($js_validation) {
                        $ret .= '" onclick="return '.$this->js['prefix'].'form_control(this.form);';
                }
                $ret .='"';
                if(isset($js)) $ret .= ' '.$js;
                $ret .= ' />';
                return $ret;
        } /* }}} */

        /**
         * Creates HTML hidden input element
         *
         * @param       name    element name
         * @param       value   value
         */

        function htmlHiddenSys($name, $value) /* {{{ */
        {
                return $this->htmlHidden($this->cgi['prefix']['sys'].$name, $value);
        } /* }}} */

        function htmlHiddenData($name, $value) /* {{{ */
        {
                return $this->htmlHidden($this->cgi['prefix']['data'].$name, $value);
        } /* }}} */

        function htmlHidden($name, $value) /* {{{ */
        {
                return '<input type="hidden" name="'.htmlspecialchars($name)
                        .'" value="'.htmlspecialchars($value).'" />'."\n";
        } /* }}} */

        /**
         * Creates HTML select element (tag)
         *
         * @param       name            element name
         * @param       css                     CSS class name
         * @param       kv_array        key => value array
         * @param       selected        selected key (it can be single string, array of
         *                                              keys or multiple values separated by comma)
         * @param       multiple        bool for multiple selection
         * @param       readonly        bool for readonly/disabled selection
         * @param       strip_tags      bool for stripping tags from values
         * @param       escape          bool for HTML escaping values
         * @param       js              string to be in the <select >, ususally onchange='..';
         */
        function htmlSelect($name, $css, $kv_array, $selected = null, /* ...) {{{ */
                        /* booleans: */ $multiple = false, $readonly = false, $strip_tags = false, $escape = true, $js = NULL)
        {
                $ret = '<select class="'.htmlspecialchars($css).'" name="'.htmlspecialchars($name);
                if ($multiple) {
                        $ret  .= '[]" multiple size="'.$this->multiple;
                        if (! is_array($selected) && $selected !== null) {
                                $selected = explode(',', $selected);
                        }
                }
                $ret .= '"'.($readonly ? ' disabled="disabled"' : '').$js.'>'."\n";
                if (! is_array($selected)) {
                        $selected = $selected === null ? array() : array($selected);
                }
                $found = false;
                foreach ($kv_array as $key => $value) {
                        $ret .= '<option value="'.htmlspecialchars($key).'"';
                        if ((! $found || $multiple) && in_array((string) $key, $selected, 1)
                                        || (count($selected) == 0 && ! $found && ! $multiple)) {
                                $ret  .= ' selected="selected"';
                                $found = true;
                        }
                        $strip_tags && $value = strip_tags($value);
                        $escape     && $value = htmlspecialchars($value);
                        $ret .= '>'.$value.'</option>'."\n";
                }
                $ret .= '</select>';
                return $ret;
        } /* }}} */

        /**
         * Creates HTML checkboxes or radio buttons
         *
         * @param       name            element name
         * @param       css                     CSS class name
         * @param       kv_array        key => value array
         * @param       selected        selected key (it can be single string, array of
         *                                              keys or multiple values separated by comma)
         * @param       multiple        bool for multiple selection (checkboxes)
         * @param       readonly        bool for readonly/disabled selection
         * @param       strip_tags      bool for stripping tags from values
         * @param       escape          bool for HTML escaping values
         * @param       js              string to be in the <select >, ususally onchange='..';
         */
        function htmlRadioCheck($name, $css, $kv_array, $selected = null, /* ...) {{{ */
                        /* booleans: */ $multiple = false, $readonly = false, $strip_tags = false, $escape = true, $js = NULL)
        {
                $ret = '';
                if ($multiple) {
                        if (! is_array($selected) && $selected !== null) {
                                $selected = explode(',', $selected);
                        }
                }
                if (! is_array($selected)) {
                        $selected = $selected === null ? array() : array($selected);
                }
                $found = false;
                foreach ($kv_array as $key => $value) {
                        $ret .= '<input type="'.($multiple ? 'checkbox' : 'radio').'" name="';
                        $ret .= htmlspecialchars($name).'[]" value="'.htmlspecialchars($key).'"';
                        if ((! $found || $multiple) && in_array((string) $key, $selected, 1)
                                        || (count($selected) == 0 && ! $found && ! $multiple)) {
                                $ret  .= ' checked';
                                $found = true;
                        }
                        if ($readonly) {
                                $ret .= ' disabled="disabled"';
                        }
                        $strip_tags && $value = strip_tags($value);
                        $escape     && $value = htmlspecialchars($value);
                        $ret .= '>'.$value.'<br>'."\n";
                }
                return $ret;
        } /* }}} */

    /**
     * Returns original variables HTML code for use in forms or links.
     *
     * @param   mixed   $origvars       string or array of original varaibles
     * @param   string  $method         type of method ("POST" or "GET")
     * @param   mixed   $default_value  default value of variables
     *                                  if null, empty values will be skipped
     * @return                          get HTML code of original varaibles
     */
    function get_origvars_html($origvars, $method = 'post', $default_value = '') /* {{{ */
    {
        $ret    = '';
        $method = strtoupper($method);
        if ($method == 'POST') {
            if (! is_array($origvars)) {
                $new_origvars = array();
                foreach (explode('&', $origvars) as $param) {
                    $parts = explode('=', $param, 2);
                    if (! isset($parts[1])) {
                        $parts[1] = $default_value;
                    }
                    if (strlen($parts[0]) <= 0) {
                        continue;
                    }
                    $new_origvars[$parts[0]] = $parts[1];
                }
                $origvars =& $new_origvars;
            }
            foreach ($origvars as $key => $val) {
                if (strlen($val) <= 0 && $default_value === null) {
                    continue;
                }
                $key = rawurldecode($key);
                $val = rawurldecode($val);
                $ret .= $this->htmlHidden($key, $val);
            }
        } else if (! strncmp('GET', $method, 3)) {
            if (! is_array($origvars)) {
                $ret .= $origvars;
            } else {
                foreach ($origvars as $key => $val) {
                    if (strlen($val) <= 0 && $default_value === null) {
                        continue;
                    }
                    $ret == '' || $ret .= '&amp;';
                    $ret .= htmlspecialchars(rawurlencode($key));
                    $ret .= '=';
                    $ret .= htmlspecialchars(rawurlencode($val));
                }
            }
            if ($method[strlen($method) - 1] == '+') {
                $ret = "?$ret";
            }
        } else {
            trigger_error('Unsupported Platon::get_origvars_html() method: '
                    .$method, E_USER_ERROR);
        }
        return $ret;
    } /* }}} */

        function get_sfn_cgi_vars($alternative_sfn = null) /* {{{ */
        {
                if ($alternative_sfn === null) { // FAST! (cached return value)
                        static $ret = null;
                        $ret == null && $ret = $this->get_sfn_cgi_vars($this->sfn);
                        return $ret;
                }
                $ret = '';
                $i   = 0;
                foreach ($alternative_sfn as $val) {
                        $ret != '' && $ret .= '&';
                        $ret .= rawurlencode($this->cgi['prefix']['sys'].'sfn')."[$i]=".rawurlencode($val);
                        $i++;
                }
                return $ret;
        } /* }}} */

        function get_default_cgi_prefix($type) /* {{{ */
        {
                switch ($type) {
                        case 'operation':       return 'PME_op_';
                        case 'sys':                     return 'PME_sys_';
                        case 'data':            return 'PME_data_';
                }
                return '';
        } /* }}} */

        function get_sys_cgi_var($name, $default_value = null) /* {{{ */
        {
                if (isset($this)) {
                        return $this->get_cgi_var($this->cgi['prefix']['sys'].$name, $default_value);
                }
                return phpMyEdit::get_cgi_var(phpMyEdit::get_default_cgi_prefix('sys').$name, $default_value);
        } /* }}} */

        function get_data_cgi_var($name, $default_value = null) /* {{{ */
        {
                if (isset($this)) {
                        return $this->get_cgi_var($this->cgi['prefix']['data'].$name, $default_value);
                }
                return phpMyEdit::get_cgi_var(phpMyEdit::get_default_cgi_prefix('data').$name, $default_value);
        } /* }}} */

    function get_cgi_var($name, $default_value = null) /* {{{ */
    {
                if (isset($this) && isset($this->cgi['overwrite'][$name])) {
                        return $this->cgi['overwrite'][$name];
                }

        static $magic_quotes_gpc = null;
        if ($magic_quotes_gpc === null) {
            $magic_quotes_gpc = get_magic_quotes_gpc();
        }
        $var = @$_GET[$name];
        if (! isset($var)) {
            $var = @$_POST[$name];
        }
        if (isset($var)) {
            if ($magic_quotes_gpc) {
                if (is_array($var)) {
                    foreach (array_keys($var) as $key) {
                        $var[$key] = stripslashes($var[$key]);
                    }
                } else {
                    $var = stripslashes($var);
                }
            }
        } else {
            $var = @$default_value;
        }
                if (isset($this) && $var === null && isset($this->cgi['append'][$name])) {
                        return $this->cgi['append'][$name];
                }
        return $var;
    } /* }}} */

        function get_server_var($name) /* {{{ */
        {
                if (isset($_SERVER[$name])) {
                        return $_SERVER[$name];
                }
                global $HTTP_SERVER_VARS;
                if (isset($HTTP_SERVER_VARS[$name])) {
                        return $HTTP_SERVER_VARS[$name];
                }
                global $$name;
                if (isset($$name)) {
                        return $$name;
                }
                return null;
        } /* }}} */

        /*
         * Debug functions
         */

        function print_get_vars ($miss = 'No GET variables found') // debug only /* {{{ */
        {
                // we parse form GET variables
                if (is_array($_GET)) {
                        echo "<p> Variables per GET ";
                        foreach ($_GET as $k => $v) {
                                if (is_array($v)) {
                                        foreach ($v as $akey => $aval) {
                                                // $_GET[$k][$akey] = strip_tags($aval);
                                                // $$k[$akey] = strip_tags($aval);
                                                echo "$k\[$akey\]=$aval   ";
                                        }
                                } else {
                                        // $_GET[$k] = strip_tags($val);
                                        // $$k = strip_tags($val);
                                        echo "$k=$v   ";
                                }
                        }
                        echo '</p>';
                } else {
                        echo '<p>';
                        echo $miss;
                        echo '</p>';
                }
        } /* }}} */

        function print_post_vars($miss = 'No POST variables found')  // debug only /* {{{ */
        {
                global $_POST;
                // we parse form POST variables
                if (is_array($_POST)) {
                        echo "<p>Variables per POST ";
                        foreach ($_POST as $k => $v) {
                                if (is_array($v)) {
                                        foreach ($v as $akey => $aval) {
                                                // $_POST[$k][$akey] = strip_tags($aval);
                                                // $$k[$akey] = strip_tags($aval);
                                                echo "$k\[$akey\]=$aval   ";
                                        }
                                } else {
                                        // $_POST[$k] = strip_tags($val);
                                        // $$k = strip_tags($val);
                                        echo "$k=$v   ";
                                }
                        }
                        echo '</p>';
                } else {
                        echo '<p>';
                        echo $miss;
                        echo '</p>';
                }
        } /* }}} */

        function print_vars ($miss = 'Current instance variables')  // debug only /* {{{ */
        {
                echo "$miss   ";
                echo 'page_name=',$this->page_name,'   ';
                echo 'hn=',$this->hn,'   ';
                echo 'un=',$this->un,'   ';
                echo 'pw=',$this->pw,'   ';
                echo 'db=',$this->db,'   ';
                echo 'dbp=',$this->dbp,'   ';
                echo 'dbh=',$this->dbh,'   ';
                echo 'tb=',$this->tb,'   ';
                echo 'key=',$this->key,'   ';
                echo 'key_type=',$this->key_type,'   ';
                echo 'inc=',$this->inc,'   ';
                echo 'options=',$this->options,'   ';
                echo 'fdd=',$this->fdd,'   ';
                echo 'fl=',$this->fl,'   ';
                echo 'fm=',$this->fm,'   ';
                echo 'sfn=',htmlspecialchars($this->get_sfn_cgi_vars()),'   ';
                echo 'qfn=',$this->qfn,'   ';
                echo 'sw=',$this->sw,'   ';
                echo 'rec=',$this->rec,'   ';
                echo 'navop=',$this->navop,'   ';
                echo 'saveadd=',$this->saveadd,'   ';
                echo 'moreadd=',$this->moreadd,'   ';
                echo 'canceladd=',$this->canceladd,'   ';
                echo 'savechange=',$this->savechange,'   ';
                echo 'morechange=',$this->morechange,'   ';
                echo 'cancelchange=',$this->cancelchange,'   ';
                echo 'savecopy=',$this->savecopy,'   ';
                echo 'cancelcopy=',$this->cancelcopy,'   ';
                echo 'savedelete=',$this->savedelete,'   ';
                echo 'canceldelete=',$this->canceldelete,'   ';
                echo 'cancelview=',$this->cancelview,'   ';
                echo 'operation=',$this->operation,'   ';
                echo "\n";
        } /* }}} */

        /*
         * Display buttons at top and bottom of page
         */
        function display_list_table_buttons($position, $listall = false) /* {{{ */
        {
                if (($but_str = $this->display_buttons($position)) === null)
                        return;
                if($position == 'down') echo '<hr class="'.$this->getCSSclass('hr', 'down').'" />'."\n";
                echo '<table summary="navigation" class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<tr class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<td class="',$this->getCSSclass('buttons', $position),'">',"\n";
                echo $but_str,'</td>',"\n";
                // Message is now written here
                if (strlen(@$this->message) > 0) {
                        echo '<td class="',$this->getCSSclass('message', $position),'">',$this->message,'</td>',"\n";
                }
                if($this->display['num_pages'] || $this->display['num_records'])
                        echo '<td class="',$this->getCSSclass('stats', $position),'">',"\n";
                if($this->display['num_pages']) {
                        if ($listall) {
                                echo $this->labels['Page'],':&nbsp;1&nbsp;',$this->labels['of'],'&nbsp;1';
                        } else {
                                $current_page = intval($this->fm / $this->inc) + 1;
                                $total_pages  = max(1, ceil($this->total_recs / abs($this->inc)));
                                echo $this->labels['Page'],':&nbsp;',$current_page;
                                echo '&nbsp;',$this->labels['of'],'&nbsp;',$total_pages;
                        }
                }
                if($this->display['num_records'])
                        echo '&nbsp; ',$this->labels['Records'],':&nbsp;',$this->total_recs;
                if($this->display['num_pages'] || $this->display['num_records']) echo '</td>';
                echo '</tr></table>',"\n";
                if($position == 'up') echo '<hr class="'.$this->getCSSclass('hr', 'up').'" />'."\n";
        } /* }}} */

        /*
         * Display buttons at top and bottom of page
         */
        function display_record_buttons($position) /* {{{ */
        {
                if (($but_str = $this->display_buttons($position)) === null)
                        return;
                if ($position == 'down') {
                        if ($this->tabs_enabled()) $this->display_tab_labels('down');
                        echo '<hr class="',$this->getCSSclass('hr', 'down'),'" />',"\n";
                }
                echo '<table summary="navigation" class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<tr class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<td class="',$this->getCSSclass('buttons', $position),'">',"\n";
                echo $but_str,'</td>',"\n";
                // Message is now written here
                //echo '</td>',"\n";
                if (strlen(@$this->message) > 0) {
                        echo '<td class="',$this->getCSSclass('message', $position),'">',$this->message,'</td>',"\n";
                }
                echo '</tr></table>',"\n";
                if ($position == 'up') {
                        if ($this->tabs_enabled()) $this->display_tab_labels('up');
                        echo '<hr class="',$this->getCSSclass('hr', 'up'),'" />',"\n";
                }
        } /* }}} */

        function display_buttons($position) /* {{{ */
        {
                $nav_fnc = 'nav_'.$position;
                if(! $this->$nav_fnc())
                        return;
                $buttons = (is_array($this->buttons[$this->page_type][$position]))
                        ? $this->buttons[$this->page_type][$position]
                        : $this->default_buttons[$this->page_type];
                foreach ($buttons as $name) {
                        $ret .= $this->display_button($name, $position)."\n";
                }
                return $ret;
        } /* }}} */

        function display_button($name, $position = 'up') /* {{{ */
        {
                if (is_array($name)) {
                        if (isset($name['code'])) return $name['code'];
                        return $this->htmlSubmit($name['name'], $name['value'], $name['css'], $name['disabled'], $name['js']);
                }
                $disabled = 1; // show disabled by default
                if ($name[0] == '+') { $name = substr($name, 1); $disabled =  0; } // always show disabled as enabled
                if ($name[0] == '-') { $name = substr($name, 1); $disabled = -1; } // don't show disabled
                if ($name == 'cancel') {
                        return $this->htmlSubmit('cancel'.$this->page_types[$this->page_type], 'Cancel',
                                        $this->getCSSclass('cancel', $position), false);
                }
                if (in_array($name, array('add','view','change','copy','delete'))) {
                        $enabled_fnc = $name.'_enabled';
                        $enabled     = $this->$enabled_fnc();
                        if ($name != 'add' && ! $this->total_recs && strstr('LF', $this->page_type))
                                $enabled = false;
                        return $this->htmlSubmit('operation', ucfirst($name),
                                        $this->getCSSclass($name, $position), false, $enabled ? 0 : $disabled);
                }
                if ($name == 'savedelete') {
                        $enabled     = $this->delete_enabled();
                        $js = 'onclick="return confirm(\''.$this->labels['Delete'].' ?\');"';
                        return $this->htmlSubmit('savedelete', 'Delete',
                                        $this->getCSSclass('save', $position), false, $enabled ? 0 : $disabled, $js);
                }
                if (in_array($name, array('save','more'))) {
                        $validation = true; // if js validation
                        if     ($this->page_type == 'D' && $name == 'save' ) { $value = 'Delete'; $validation = false; }
                        elseif ($this->page_type == 'C' && $name == 'more' ) { $value = 'Apply'; }
                        else $value = ucfirst($name);
                        return $this->htmlSubmit($name.$this->page_types[$this->page_type], $value,
                                        $this->getCSSclass($name, $position), $validation);
                }
                $listall = $this->inc <= 0;
                if ($listall) {
                        $disabledprev = true;
                        $disablednext = true;
                        $total_pages  = 1;
                        $current_page = 1;
                } else {
                        $disabledprev = $this->fm <= 0;
                        $disablednext =  $this->fm + $this->inc >= $this->total_recs;
                        $total_pages  = max(1, ceil($this->total_recs / abs($this->inc)));
                        $current_page = ceil($this->fm / abs($this->inc)); // must + 1
                }
                $disabledfirst = $disabledprev;
                $disabledlast  = $disablednext;
                // some statistics first
                if ($name == 'total_pages') return $total_pages;
                if ($name == 'current_page') return ($current_page+1);
                if ($name == 'total_recs') return ($this->total_recs);
                // now some goto buttons/dropdowns/inputs...
                if ($name == 'goto_text') {
                        $ret = '<input type="text" class="'.$this->getCSSclass('gotopn', $position).'"';
                        $ret .= ' name="'.$this->cgi['prefix']['sys'].'navpn'.$position.'" value="'.($current_page+1).'"';
                        $ret .= ' size="'.(strlen($total_pages)+1).'" maxlength="'.(strlen($total_pages)+1).'"';
                        // TODO some js here.... on enter submit, on click erase ?...
                        $ret .=' oneypress="return PE_filter_handler(this.form, event);" />';
                        return $ret;
                }
                if ($name == 'goto_combo') {
                        $disabledgoto = !($listall || ($disablednext && $disabledprev)) ? '' : ' disabled';
                        if ($disablegoto != '' && $disabled < 0) return;
                        $kv_array = array();
                        for ($i = 0; $i < $total_pages; $i++) {
                                $kv_array[$this->inc * $i] = $i + 1;
                        }
                        // TODO: add onchange="return this.form.submit();" DONE ???
                        return $this->htmlSelect($this->cgi['prefix']['sys'].ltrim($disabledgoto).'navfm'.$position,
                                        $this->getCSSclass('goto', $position), $kv_array, (string)$this->fm, false, $disabledgoto,
                                        false, true, 'onchange="return this.form.submit();"');
                }
                if ($name == 'goto') {
                        return $this->htmlSubmit('navop', 'Go to', $this->getCSSclass('goto', $position),
                                        false, ($listall || ($disablednext && $disabledprev)) ? $disabled : 0);
                }
                if (in_array($name, array('first','prev','next','last','<<','<','>','>>'))) {
                        $disabled_var = 'disabled'.$name;
                        $name2 = $name;
                        if (strlen($name) <= 2) {
                                $nav_values = array('<<' => 'first', '<' => 'prev', '>' => 'next', '>>' => 'last');
                                $disabled_var = 'disabled'.$nav_values[$name];
                                $name2 = $nav_values[$name];
                        }
                        return $this->htmlSubmit('navop', ucfirst($name),
                                        $this->getCSSclass($name2, $position), false, $$disabled_var ? $disabled : 0);
                }
                if(isset($this->labels[$name])) return $this->labels[$name];
                return $name;
        } /* }}} */

        function number_of_recs() /* {{{ */
        {
                $count_parts = array(
                                'type'   => 'select',
                                'select' => 'count(*)',
                                'from'   => $this->get_SQL_join_clause(),
                                'where'  => $this->get_SQL_where_from_query_opts());
                $res = $this->myquery($this->get_SQL_query($count_parts), __LINE__);
                $row = @mysql_fetch_array($res, MYSQL_NUM);
                $this->total_recs = $row[0];
        } /* }}} */

        /*
         * Table Page Listing
         */
        function list_table() /* {{{ */
        {
                if ($this->fm == '') {
                        $this->fm = 0;
                }
                $this->fm = $this->navfm;
                if ($this->prev_operation()) {
                        $this->fm = $this->fm - $this->inc;
                        if ($this->fm < 0) {
                                $this->fm = 0;
                        }
                }
                if ($this->first_operation()) {
                        $this->fm = 0;
                } // last operation must be performed below, after retrieving total_recs
                if ($this->next_operation()) {
                        $this->fm += $this->inc;
                }
                $this->number_of_recs();
                if ($this->last_operation() || $this->fm > $this->total_recs) { // if goto_text is badly set
                        $this->fm = (int)(($this->total_recs - 1)/$this->inc)*$this->inc;
                }
                // If sort sequence has changed, restart listing
                $this->qfn != $this->prev_qfn && $this->fm = 0;
                if (0) { // DEBUG
                        echo 'qfn vs. prev_qfn comparsion ';
                        echo '[<b>',htmlspecialchars($this->qfn),'</b>]';
                        echo '[<b>',htmlspecialchars($this->prev_qfn),'</b>]<br />';
                        echo 'comparsion <u>',($this->qfn == $this->prev_qfn ? 'proved' : 'failed'),'</u>';
                        echo '<hr />';
                }
                /*
                 * If user is allowed to Change/Delete records, we need an extra column
                 * to allow users to select a record
                 */
                $select_recs = $this->key != '' &&
                        ($this->change_enabled() || $this->delete_enabled() || $this->view_enabled());
                // Are we doing a listall?
                $listall = $this->inc <= 0;
                /*
                 * Display the MySQL table in an HTML table
                 */
                $this->form_begin();
                echo $this->get_origvars_html($this->get_sfn_cgi_vars());
                echo $this->htmlHiddenSys('fl', $this->fl);
                // Display buttons at top and/or bottom of page.
                $this->display_list_table_buttons('up', $listall);
                if ($this->cgi['persist'] != '') {
                        echo $this->get_origvars_html($this->cgi['persist']);
                }
                if (! $this->filter_operation()) {
                        echo $this->get_origvars_html($this->qfn);
                }
                echo $this->htmlHiddenSys('qfn', $this->qfn);
                echo $this->htmlHiddenSys('fm', $this->fm);
                echo '<table class="',$this->getCSSclass('main'),'" summary="',$this->tb,'">',"\n";
                echo '<tr class="',$this->getCSSclass('header'),'">',"\n";
                /*
                 * System (navigation, selection) columns counting
                 */
                $sys_cols  = 0;
                $sys_cols += intval($this->filter_enabled() || $select_recs);
                if ($sys_cols > 0) {
                        $sys_cols += intval($this->nav_buttons()
                                        && ($this->nav_text_links() || $this->nav_graphic_links()));
                }
                /*
                 * We need an initial column(s) (sys columns)
                 * if we have filters, Changes or Deletes enabled
                 */
                if ($sys_cols) {
                        echo '<th class="',$this->getCSSclass('header'),'" colspan="',$sys_cols,'">';
                        if ($this->filter_enabled()) {
                                if ($this->filter_operation()) {
                                        echo $this->htmlSubmit('sw', 'Hide', $this->getCSSclass('hide'), false);
                                        echo $this->htmlSubmit('sw', 'Clear', $this->getCSSclass('clear'), false);
                                } else {
                                        echo $this->htmlSubmit('sw', 'Search', $this->getCSSclass('search'), false);
                                }
                        } else {
                                echo '&nbsp;';
                        }
                        echo '</th>',"\n";
                }
                for ($k = 0; $k < $this->num_fds; $k++) {
                        $fd = $this->fds[$k];
                        if (! $this->displayed[$k]) {
                                continue;
                        }
                        $css_postfix    = @$this->fdd[$k]['css']['postfix'];
                        $css_class_name = $this->getCSSclass('header', null, null, $css_postfix);
                        $fdn = $this->fdd[$fd]['name'];
                        if (! $this->fdd[$fd]['sort'] || $this->password($fd)) {
                                echo '<th class="',$css_class_name,'">',$fdn,'</th>',"\n";
                        } else {
                                // Clicking on the current sort field reverses the sort order
                                $new_sfn = $this->sfn;
                                array_unshift($new_sfn, in_array("$k", $new_sfn, 1) ? "-$k" : $k);
                                echo '<th class="',$css_class_name,'">';
                                echo '<a class="',$css_class_name,'" href="';
                                echo htmlspecialchars($this->page_name.'?'.$this->cgi['prefix']['sys'].'fm'.'=0'
                                                .'&'.$this->cgi['prefix']['sys'].'fl'.'='.$this->fl
                                                .'&'.$this->cgi['prefix']['sys'].'qfn'.'='.rawurlencode($this->qfn).$this->qfn
                                                .'&'.$this->get_sfn_cgi_vars($new_sfn).$this->cgi['persist']);
                                echo '">',$fdn,'</a></th>',"\n";
                        }
                }
                echo '</tr>',"\n";

                /*
                 * Prepare the SQL Query from the data definition file
                 */
                $qparts['type']   = 'select';
                $qparts['select'] = $this->get_SQL_column_list();
                // Even if the key field isn't displayed, we still need its value
                if ($select_recs) {
                        if (!in_array ($this->key, $this->fds)) {
                                $qparts['select'] .= ','.$this->fqn($this->key);
                        }
                }
                $qparts['from']  = $this->get_SQL_join_clause();
                $qparts['where'] = $this->get_SQL_where_from_query_opts();
                // build up the ORDER BY clause
                if (isset($this->sfn)) {
                        $sort_fields   = array();
                        $sort_fields_w = array();
                        foreach ($this->sfn as $field) {
                                if ($field[0] == '-') {
                                        $field = substr($field, 1);
                                        $desc  = true;
                                } else {
                                        $field = $field;
                                        $desc  = false;
                                }
                                $sort_field   = $this->fqn($field);
                                $sort_field_w = $this->fdd[$field]['name'];
                                $this->col_has_sql($field) && $sort_field_w .= ' (sql)';
                                if ($desc) {
                                        $sort_field   .= ' DESC';
                                        $sort_field_w .= ' '.$this->labels['descending'];
                                } else {
                                        $sort_field_w .= ' '.$this->labels['ascending'];
                                }
                                $sort_fields[]   = $sort_field;
                                $sort_fields_w[] = $sort_field_w;
                        }
                        if (count($sort_fields) > 0) {
                                $qparts['orderby'] = join(',', $sort_fields);
                        }
                }
                $qparts['limit'] = $listall ? '' : $this->fm.','.$this->inc;

                /*
                 * Main list_table() query
                 *
                 * Each row of the HTML table is one record from the SQL query. We must
                 * perform this query before filter printing, because we want to use
                 * mysql_field_len() function. We will also fetch the first row to get
                 * the field names.
                 */
                $query = $this->get_SQL_query($qparts);
                $res   = $this->myquery($query, __LINE__);
                if ($res == false) {
                        $this->error('invalid SQL query', $query);
                        return false;
                }
                $row = @mysql_fetch_array($res, MYSQL_ASSOC);

                /* FILTER {{{
                 *
                 * Draw the filter and fill it with any data typed in last pass and stored
                 * in the array parameter keyword 'filter'. Prepare the SQL WHERE clause.
                 */
                if ($this->filter_operation()) {
                        // Filter row retrieval
                        $fields     = false;
                        $filter_row = $row;
                        if (! is_array($filter_row)) {
                                unset($qparts['where']);
                                $query = $this->get_SQL_query($qparts);
                                $res   = $this->myquery($query, __LINE__);
                                if ($res == false) {
                                        $this->error('invalid SQL query', $query);
                                        return false;
                                }
                                $filter_row = @mysql_fetch_array($res, MYSQL_ASSOC);
                        }
                        /* Variable $fields is used to get index of particular field in
                           result. That index can be passed in example to mysql_field_len()
                           function. Use field names as indexes to $fields array. */
                        if (is_array($filter_row)) {
                                $fields = array_flip(array_keys($filter_row));
                        }
                        if ($fields != false) {
                                $css_class_name = $this->getCSSclass('filter');
                                echo '<tr class="',$css_class_name,'">',"\n";
                                echo '<td class="',$css_class_name,'" colspan="',$sys_cols,'">';
                                echo $this->htmlSubmit('filter', 'Query', $this->getCSSclass('query'), false);
                                echo '</td>', "\n";
                                for ($k = 0; $k < $this->num_fds; $k++) {
                                        if (! $this->displayed[$k]) {
                                                continue;
                                        }
                                        $css_postfix      = @$this->fdd[$k]['css']['postfix'];
                                        $css_class_name   = $this->getCSSclass('filter', null, null, $css_postfix);
                                        $this->field_name = $this->fds[$k];
                                        $fd               = $this->field_name;
                                        $this->field      = $this->fdd[$fd];
                                        $l  = 'qf'.$k;
                                        $lc = 'qf'.$k.'_comp';
                                        $li = 'qf'.$k.'_id';
                                        if ($this->clear_operation()) {
                                                $m  = null;
                                                $mc = null;
                                                $mi = null;
                                        } else {
                                                $m  = $this->get_sys_cgi_var($l);
                                                $mc = $this->get_sys_cgi_var($lc);
                                                $mi = $this->get_sys_cgi_var($li);
                                        }
                                        echo '<td class="',$css_class_name,'">';
                                        if ($this->password($k)) {
                                                echo '&nbsp;';
                                        } else if ($this->fdd[$fd]['select'] == 'D' || $this->fdd[$fd]['select'] == 'M') {
                                                // Multiple fields processing
                                                // Default size is 2 and array required for values.
                                                $from_table = ! $this->col_has_values($k) || isset($this->fdd[$k]['values']['table']);
                                                $vals       = $this->set_values($k, array('*' => '*'), null, $from_table);
                                                $selected   = $mi;
                                                $multiple   = $this->col_has_multiple_select($k);
                                                $multiple  |= $this->fdd[$fd]['select'] == 'M';
                                                $readonly   = false;
                                                $strip_tags = true;
                                                $escape     = true;
                                                echo $this->htmlSelect($this->cgi['prefix']['sys'].$l.'_id', $css_class_name,
                                                                $vals, $selected, $multiple, $readonly, $strip_tags, $escape);
                                        } elseif ($this->fdd[$fd]['select'] == 'N' || $this->fdd[$fd]['select'] == 'T') {
                                                $size_ml_props = '';
                                                $maxlen = intval($this->fdd[$k]['maxlen']);
                                                $maxlen > 0 || $maxlen = intval(@mysql_field_len($res, $fields["qf$k"]));
                                                $size = isset($this->fdd[$k]['size']) ? $this->fdd[$k]['size']
                                                        : ($maxlen < 30 ? min($maxlen, 8) : 12);
                                                $size   && $size_ml_props .= ' size="'.$size.'"';
                                                $maxlen && $size_ml_props .= ' maxlength="'.$maxlen.'"';
                                                if ($this->fdd[$fd]['select'] == 'N') {
                                                        $mc = in_array($mc, $this->comp_ops) ? $mc : '=';
                                                        echo $this->htmlSelect($this->cgi['prefix']['sys'].$l.'_comp',
                                                                        $css_class_name, $this->comp_ops, $mc);
                                                }
                                                echo '<input class="',$css_class_name,'" value="',htmlspecialchars(@$m);
                                                echo '" type="text" name="'.$this->cgi['prefix']['sys'].'qf'.$k.'"',$size_ml_props;
                                                echo ' onkeypress="return '.$this->js['prefix'].'filter_handler(this.form, event);" />';
                                        } else {
                                                echo '&nbsp;';
                                        }
                                        echo '</td>',"\n";
                                }
                                echo '</tr>',"\n";
                        }
                } // }}}
                
                /*
                 * Display sorting sequence
                 */
                if ($qparts['orderby'] && $this->display['sort']) {
                        $css_class_name = $this->getCSSclass('sortinfo');
                        echo '<tr class="',$css_class_name,'">',"\n";
                        echo '<td class="',$css_class_name,'" colspan="',$sys_cols,'">';
                        echo '<a class="',$css_class_name,'" href="';
                        echo htmlspecialchars($this->page_name
                                        .'?'.$this->cgi['prefix']['sys'].'fl'.'='.$this->fl
                                        .'&'.$this->cgi['prefix']['sys'].'fm'.'='.$this->fm
                                        .'&'.$this->cgi['prefix']['sys'].'qfn'.'='.rawurlencode($this->qfn)
                                        .$this->qfn.$this->cgi['persist']);
                        echo '">',$this->labels['Clear'],'</a></td>',"\n";
                        echo '<td class="',$css_class_name,'" colspan="',$this->num_fields_displayed,'">';
                        echo $this->labels['Sorted By'],': ',join(', ', $sort_fields_w),'</td></tr>',"\n";
                }

                /*
                 * Display the current query
                 */
                $text_query = $this->get_SQL_where_from_query_opts(null, true);
                if ($text_query != '' && $this->display['query']) {
                        $css_class_name = $this->getCSSclass('queryinfo');
                        echo '<tr class="',$css_class_name,'">',"\n";
                        echo '<td class="',$css_class_name,'" colspan="',$sys_cols,'">';
                        echo '<a class="',$css_class_name,'" href="';
                        echo htmlspecialchars($this->get_server_var('PHP_SELF')
                                        .'?'.$this->cgi['prefix']['sys'].'fl'.'='.$this->fl
                                        .'&'.$this->cgi['prefix']['sys'].'fm'.'='.$this->fm
                                        .'&'.$this->cgi['prefix']['sys'].'qfn'.'='.rawurlencode($this->qfn)
                                        .'&'.$this->get_sfn_cgi_vars().$this->cgi['persist']);
                        echo '">',$this->labels['Clear'],'</a></td>',"\n";
                        echo '<td class="',$css_class_name,'" colspan="',$this->num_fields_displayed,'">';
                        echo $this->labels['Current Query'],': ',htmlspecialchars($text_query),'</td></tr>',"\n";
                }

                if ($this->nav_text_links() || $this->nav_graphic_links()) {
                        $qstrparts = array();
                        strlen($this->fl)             > 0 && $qstrparts[] = $this->cgi['prefix']['sys'].'fl'.'='.$this->fl;
                        strlen($this->fm)             > 0 && $qstrparts[] = $this->cgi['prefix']['sys'].'fm'.'='.$this->fm;
                        count($this->sfn)             > 0 && $qstrparts[] = $this->get_sfn_cgi_vars();
                        strlen($this->cgi['persist']) > 0 && $qstrparts[] = $this->cgi['persist'];
                        $qpview      = $qstrparts;
                        $qpcopy      = $qstrparts;
                        $qpchange    = $qstrparts;
                        $qpdelete    = $qstrparts;
                        $qp_prefix   = $this->cgi['prefix']['sys'].'operation'.'='.$this->cgi['prefix']['operation'];
                        $qpview[]    = $qp_prefix.'View';
                        $qpcopy[]    = $qp_prefix.'Copy';
                        $qpchange[]  = $qp_prefix.'Change';
                        $qpdelete[]  = $qp_prefix.'Delete';
                        $qpviewStr   = htmlspecialchars($this->page_name.'?'.join('&',$qpview).$this->qfn);
                        $qpcopyStr   = htmlspecialchars($this->page_name.'?'.join('&',$qpcopy).$this->qfn);
                        $qpchangeStr = htmlspecialchars($this->page_name.'?'.join('&',$qpchange).$this->qfn);
                        $qpdeleteStr = htmlspecialchars($this->page_name.'?'.join('&',$qpdelete).$this->qfn);
                }

                $fetched  = true;
                $first    = true;
                $rowCount = 0;
                while ((!$fetched && ($row = @mysql_fetch_array($res, MYSQL_ASSOC)) != false)
                                || ($fetched && $row != false)) {
                        $fetched = false;
                        echo '<tr class="',$this->getCSSclass('row', null, 'next'),'">',"\n";
                        if ($sys_cols) { /* {{{ */
                                $key_rec     = $row['qf'.$this->key_num];
                                $queryAppend = htmlspecialchars('&'.$this->cgi['prefix']['sys'].'rec'.'='.$key_rec);
                                $viewQuery   = $qpviewStr   . $queryAppend;
                                $copyQuery   = $qpcopyStr   . $queryAppend;
                                $changeQuery = $qpchangeStr . $queryAppend;
                                $deleteQuery = $qpdeleteStr . $queryAppend;
                                $viewTitle   = htmlspecialchars($this->labels['View']);
                                $changeTitle = htmlspecialchars($this->labels['Change']);
                                $copyTitle   = htmlspecialchars($this->labels['Copy']);
                                $deleteTitle = htmlspecialchars($this->labels['Delete']);
                                $css_class_name = $this->getCSSclass('navigation', null, true);
                                if ($select_recs) {
                                        if (! $this->nav_buttons() || $sys_cols > 1) {
                                                echo '<td class="',$css_class_name,'">';
                                        }
                                        if ($this->nav_graphic_links()) {
                                                $printed_out = false;
                                                if ($this->view_enabled()) {
                                                        $printed_out = true;
                                                        echo '<a class="',$css_class_name,'" href="',$viewQuery,'"><img class="';
                                                        echo $css_class_name,'" src="',$this->url['images'];
                                                        echo 'pme-view.png" height="15" width="16" border="0" ';
                                                        echo 'alt="',$viewTitle,'" title="',$viewTitle,'" /></a>';
                                                }
                                                if ($this->change_enabled()) {
                                                        $printed_out && print('&nbsp;');
                                                        $printed_out = true;
                                                        echo '<a class="',$css_class_name,'" href="',$changeQuery,'"><img class="';
                                                        echo $css_class_name,'" src="',$this->url['images'];
                                                        echo 'pme-change.png" height="15" width="16" border="0" ';
                                                        echo 'alt="',$changeTitle,'" title="',$changeTitle,'" /></a>';
                                                }
                                                if ($this->copy_enabled()) {
                                                        $printed_out && print('&nbsp;');
                                                        $printed_out = true;
                                                        echo '<a class="',$css_class_name,'" href="',$copyQuery,'"><img class="';
                                                        echo $css_class_name,'" src="',$this->url['images'];
                                                        echo 'pme-copy.png" height="15" width="16" border="0" ';
                                                        echo 'alt="',$copyTitle,'" title="',$copyTitle,'" /></a>';
                                                }
                                                if ($this->delete_enabled()) {
                                                        $printed_out && print('&nbsp;');
                                                        $printed_out = true;
                                                        echo '<a class="',$css_class_name,'" href="',$deleteQuery,'"><img class="';
                                                        echo $css_class_name,'" src="',$this->url['images'];
                                                        echo 'pme-delete.png" height="15" width="16" border="0" ';
                                                        echo 'alt="',$deleteTitle,'" title="',$deleteTitle,'" /></a>';
                                                }
                                        }
                                        if ($this->nav_text_links()) {
                                                if ($this->nav_graphic_links()) {
                                                        echo '<br class="',$css_class_name,'">';
                                                }
                                                $printed_out = false;
                                                if ($this->view_enabled()) {
                                                        $printed_out = true;
                                                        echo '<a href="',$viewQuery,'" title="',$viewTitle,'" class="',$css_class_name,'">V</a>';
                                                }
                                                if ($this->change_enabled()) {
                                                        $printed_out && print('&nbsp;');
                                                        $printed_out = true;
                                                        echo '<a href="',$changeQuery,'" title="',$changeTitle,'" class="',$css_class_name,'">C</a>';
                                                }
                                                if ($this->copy_enabled()) {
                                                        $printed_out && print('&nbsp;');
                                                        $printed_out = true;
                                                        echo '<a href="',$copyQuery,'" title="',$copyTitle,'" class="',$css_class_name,'">P</a>';
                                                }
                                                if ($this->delete_enabled()) {
                                                        $printed_out && print('&nbsp;');
                                                        $printed_out = true;
                                                        echo '<a href="',$deleteQuery,'" title="',$deleteTitle,'" class="',$css_class_name,'">D</a>';
                                                }
                                        }
                                        if (! $this->nav_buttons() || $sys_cols > 1) {
                                                echo '</td>',"\n";
                                        }
                                        if ($this->nav_buttons()) {
                                                echo '<td class="',$css_class_name,'"><input class="',$css_class_name;
                                                echo '" type="radio" name="'.$this->cgi['prefix']['sys'].'rec';
                                                echo '" value="',htmlspecialchars($key_rec),'"';
                                                if (($this->rec == '' && $first) || ($this->rec == $key_rec)) {
                                                        echo ' checked';
                                                        $first = false;
                                                }
                                                echo ' /></td>',"\n";
                                        }
                                } elseif ($this->filter_enabled()) {
                                        echo '<td class="',$css_class_name,'" colspan=',$sys_cols,'>&nbsp;</td>',"\n";
                                }
                        } /* }}} */
                        for ($k = 0; $k < $this->num_fds; $k++) { /* {{{ */
                                $fd = $this->fds[$k];
                                if (! $this->displayed[$k]) {
                                        continue;
                                }
                                $css_postfix    = @$this->fdd[$k]['css']['postfix'];
                                $css_class_name = $this->getCSSclass('cell', null, true, $css_postfix);
                                if ($this->password($k)) {
                                        echo '<td class="',$css_class_name,'">',$this->labels['hidden'],'</td>',"\n";
                                        continue;
                                }
                                echo '<td class="',$css_class_name,'"',$this->getColAttributes($fd),'>';
                                echo $this->cellDisplay($k, $row, $css_class_name);
                                echo '</td>',"\n";
                        } /* }}} */
                        echo '</tr>',"\n";
                }

                /*
                 * Display and accumulate column aggregation info, do totalling query
                 * XXX this feature does not work yet!!!
                 */
                // aggregates listing (if any)
                if ($$var_to_total) {
                        // do the aggregate query if necessary
                        //if ($vars_to_total) {
                                $qp = array();
                                $qp['type'] = 'select';
                                $qp['select'] = $aggr_from_clause;
                                $qp['from']   = $this->get_SQL_join_clause();
                                $qp['where']  = $this->get_SQL_where_from_query_opts();
                                $tot_query    = $this->get_SQL_query($qp);
                                $totals_result = $this->myquery($tot_query,__LINE__);
                                $tot_row       = @mysql_fetch_array($totals_result, MYSQL_ASSOC);
                        //}
                        $qp_aggr = $qp;
                        echo "\n",'<tr class="TODO-class">',"\n",'<td class="TODO-class">&nbsp;</td>',"\n";
                        /*
                        echo '<td>';
                        echo printarray($qp_aggr);
                        echo printarray($vars_to_total);
                        echo '</td>';
                        echo '<td colspan="'.($this->num_fds-1).'">'.$var_to_total.' '.$$var_to_total.'</td>';
                        */
                        // display the results
                        for ($k=0;$k<$this->num_fds;$k++) {
                                $fd = $this->fds[$k];
                                if (stristr($this->fdd[$fd]['options'],'L') or !isset($this->fdd[$fd]['options'])) {
                                        echo '<td>';
                                        $aggr_var  = 'qf'.$k.'_aggr';
                                        $$aggr_var = $this->get_sys_cgi_var($aggr_var);
                                        if ($$aggr_var) {
                                                echo $this->sql_aggrs[$$aggr_var],': ',$tot_row[$aggr_var];
                                        } else {
                                                echo '&nbsp;';
                                        }
                                        echo '</td>',"\n";
                                }
                        }
                        echo '</tr>',"\n";
                }
                echo '</table>',"\n"; // end of table rows listing
                $this->display_list_table_buttons('down', $listall);
                $this->form_end();
        } /* }}} */

        function display_record() /* {{{ */
        {
                // PRE Triggers
                $ret = true;
                if ($this->change_operation()) {
                        $ret &= $this->exec_triggers_simple('update', 'pre');
                        // if PRE update fails, then back to view operation
                        if (! $ret) {
                                $this->operation = $this->labels['View'];
                                $ret = true;
                        }
                }
                if ($this->add_operation() || $this->copy_operation()) {
                        $ret &= $this->exec_triggers_simple('insert', 'pre');
                }
                if ($this->view_operation()) {
                        $ret &= $this->exec_triggers_simple('select', 'pre');
                }
                if ($this->delete_operation()) {
                        $ret &= $this->exec_triggers_simple('delete', 'pre');
                }
                // if PRE insert/view/delete fail, then back to the list
                if ($ret == false) {
                        $this->operation = '';
                        $this->list_table();
                        return;
                }
                $this->form_begin();
                if ($this->cgi['persist'] != '') {
                        echo $this->get_origvars_html($this->cgi['persist']);
                }
                echo $this->get_origvars_html($this->get_sfn_cgi_vars());
                echo $this->get_origvars_html($this->qfn);
                echo $this->htmlHiddenSys('cur_tab', $this->dhtml['prefix'].'tab'.$this->cur_tab);
                echo $this->htmlHiddenSys('qfn', $this->qfn);
                echo $this->htmlHiddenSys('rec', $this->copy_operation() ? '' : $this->rec);
                echo $this->htmlHiddenSys('fm', $this->fm);
                echo $this->htmlHiddenSys('fl', $this->fl);
                $this->display_record_buttons('up');
                if ($this->tabs_enabled()) {
                        echo '<div id="'.$this->dhtml['prefix'].'tab0">',"\n";
                }
                echo '<table class="',$this->getCSSclass('main'),'" summary="',$this->tb,'">',"\n";
                if ($this->add_operation()) {
                        $this->display_add_record();
                } else {
                        $this->display_copy_change_delete_record();
                }
                echo '</table>',"\n";
                if ($this->tabs_enabled()) {
                echo '</div>',"\n";
                }               
                $this->display_record_buttons('down');

                $this->form_end();
        } /* }}} */

        /*
         * Action functions
         */

        function do_add_record() /* {{{ */
        {
                // Preparing query
                $query       = '';
                $key_col_val = '';
                $newvals     = array();
                for ($k = 0; $k < $this->num_fds; $k++) {
                        if ($this->processed($k)) {
                                $fd = $this->fds[$k];
                                if ($this->readonly($k)) {
                                        $fn = (string) @$this->fdd[$k]['default'];
                                } else {
                                        $fn = $this->get_data_cgi_var($fd);
                                }
                                if ($fd == $this->key) {
                                        $key_col_val = $fn;
                                }
                                $newvals[$fd] = is_array($fn) ? join(',',$fn) : $fn;
                        }
                }
                // Creating array of changed keys ($changed)
                $changed = array_keys($newvals);
                // Before trigger, newvals can be efectively changed
                if ($this->exec_triggers('insert', 'before', $oldvals, $changed, $newvals) == false) {
                        return false;
                }
                // Real query (no additional query in this method)
                foreach ($newvals as $fd => $val) {
                        if ($fd == '') continue;
                        if ($this->col_has_sqlw($this->fdn[$fd])) {
                                $val_as  = addslashes($val);
                                $val_qas = '"'.addslashes($val).'"';
                                $value = $this->substituteVars(
                                                $this->fdd[$this->fdn[$fd]]['sqlw'], array(
                                                        'val_qas' => $val_qas,
                                                        'val_as'  => $val_as,
                                                        'val'     => $val
                                                        ));
                        } else {
                                $value = "'".addslashes($val)."'";
                        }
                        if ($query == '') {
                                $query = 'INSERT INTO `'.$this->tb.'` (`'.$fd.'`'; // )
                                $query2 = ') VALUES ('.$value.'';
                        } else {
                                $query  .= ', `'.$fd.'`';
                                $query2 .= ', '.$value.'';
                        }
                }
                $query .= $query2.')';
                $res    = $this->myquery($query, __LINE__);
                $this->message = @mysql_affected_rows($this->dbh).' '.$this->labels['record added'];
                if (! $res) {
                        return false;
                }
                $this->rec = mysql_insert_id($this->dbh);
                // Notify list
                if (@$this->notify['insert'] || @$this->notify['all']) {
                        $this->email_notify(false, $newvals);
                }
                // Note change in log table
                if ($this->logtable) {
                        $query = sprintf('INSERT INTO %s'
                                        .' (updated, user, host, operation, tab, rowkey, col, oldval, newval)'
                                        .' VALUES (NOW(), "%s", "%s", "insert", "%s", "%s", "", "", "%s")',
                                        $this->logtable, addslashes($this->get_server_var('REMOTE_USER')),
                                        addslashes($this->get_server_var('REMOTE_ADDR')), addslashes($this->tb),
                                        addslashes($key_col_val), addslashes(serialize($newvals)));
                        $this->myquery($query, __LINE__);
                }
                // After trigger
                if ($this->exec_triggers('insert', 'after', $oldvals, $changed, $newvals) == false) {
                        return false;
                }
                return true;
        } /* }}} */

        function do_change_record() /* {{{ */
        {
                // Preparing queries
                $query_real   = '';
                $query_oldrec = '';
                $newvals      = array();
                $oldvals      = array();
                $changed      = array();
                // Prepare query to retrieve oldvals
                for ($k = 0; $k < $this->num_fds; $k++) {
                        if ($this->processed($k) && !$this->readonly($k)) {
                                $fd = $this->fds[$k];
                                $fn = $this->get_data_cgi_var($fd);
                                $newvals[$this->fds[$k]] = is_array($fn) ? join(',',$fn) : $fn;
                                if ($query_oldrec == '') {
                                        $query_oldrec = 'SELECT '.$fd;
                                } else {
                                        $query_oldrec .= ','.$fd;
                                }
                        }
                }
                $where_part = " WHERE (".$this->key.'='.$this->key_delim.$this->rec.$this->key_delim.')';
                $query_newrec  = $query_oldrec.' FROM ' . $this->tb;
                $query_oldrec .= ' FROM ' . $this->tb . $where_part;
                // Additional query (must go before real query)
                $res     = $this->myquery($query_oldrec, __LINE__);
                $oldvals = @mysql_fetch_array($res, MYSQL_ASSOC);
                @mysql_free_result($res);
                // Creating array of changed keys ($changed)
                foreach ($newvals as $fd => $value) {
                        if ($value != $oldvals[$fd])
                                $changed[] = $fd;
                }
                // Before trigger
                if ($this->exec_triggers('update', 'before', $oldvals, $changed, $newvals) == false) {
                        return false;
                }
                // Build the real query respecting changes to the newvals array
                foreach ($newvals as $fd => $val) {
                        if ($fd == '') continue;
                        if ($this->col_has_sqlw($this->fdn[$fd])) {
                                $val_as  = addslashes($val);
                                $val_qas = '"'.addslashes($val).'"';
                                $value = $this->substituteVars(
                                                $this->fdd[$this->fdn[$fd]]['sqlw'], array(
                                                        'val_qas' => $val_qas,
                                                        'val_as'  => $val_as,
                                                        'val'     => $val
                                                        ));
                        } else {
                                $value = "'".addslashes($val)."'";
                        }
                        if ($query_real == '') {
                                $query_real   = 'UPDATE '.$this->tb.' SET '.$fd.'='.$value;
                        } else {
                                $query_real   .= ','.$fd.'='.$value;
                        }
                }
                $query_real .= $where_part;
                // Real query
                $res = $this->myquery($query_real, __LINE__);
                $this->message = @mysql_affected_rows($this->dbh).' '.$this->labels['record changed'];
                if (! $res) {
                        return false;
                }
                // Another additional query (must go after real query)
                if (in_array($this->key, $changed)) {
                        $this->rec = $newvals[$this->key]; // key has changed
                }
                $query_newrec .= ' WHERE ('.$this->key.'='.$this->key_delim.$this->rec.$this->key_delim.')';
                $res     = $this->myquery($query_newrec, __LINE__);
                $newvals = @mysql_fetch_array($res, MYSQL_ASSOC);
                @mysql_free_result($res);
                // Creating array of changed keys ($changed)
                $changed = array();
                foreach ($newvals as $fd => $value) {
                        if ($value != $oldvals[$fd])
                                $changed[] = $fd;
                }
                // Notify list
                if (@$this->notify['update'] || @$this->notify['all']) {
                        if (count($changed) > 0) {
                                $this->email_notify($oldvals, $newvals);
                        }
                }
                // Note change in log table
                if ($this->logtable) {
                        foreach ($changed as $key) {
                                $qry = sprintf('INSERT INTO %s'
                                                .' (updated, user, host, operation, tab, rowkey, col, oldval, newval)'
                                                .' VALUES (NOW(), "%s", "%s", "update", "%s", "%s", "%s", "%s", "%s")',
                                                $this->logtable, addslashes($this->get_server_var('REMOTE_USER')),
                                                addslashes($this->get_server_var('REMOTE_ADDR')), addslashes($this->tb),
                                                addslashes($this->rec), addslashes($key),
                                                addslashes($oldvals[$key]), addslashes($newvals[$key]));
                                $this->myquery($qry, __LINE__);
                        }
                }
                // After trigger
                if ($this->exec_triggers('update', 'after', $oldvals, $changed, $newvals) == false) {
                        return false;
                }
                return true;
        } /* }}} */

        function do_delete_record() /* {{{ */
        {
                // Additional query
                $query   = 'SELECT * FROM '.$this->tb.' WHERE ('.$this->key.' = '
                                .$this->key_delim.$this->rec.$this->key_delim.')'; // )
                $res     = $this->myquery($query, __LINE__);
                $oldvals = @mysql_fetch_array($res, MYSQL_ASSOC);
                @mysql_free_result($res);
                // Creating array of changed keys ($changed)
                $changed = array_keys($oldvals);
                $newvals = array();
                // Before trigger
                if ($this->exec_triggers('delete', 'before', $oldvals, $changed, $newvals) == false) {
                        return false;
                }
                // Real query
                $query = 'DELETE FROM '.$this->tb.' WHERE ('.$this->key.' = '
                                .$this->key_delim.$this->rec.$this->key_delim.')'; // )
                $res = $this->myquery($query, __LINE__);
                $this->message = @mysql_affected_rows($this->dbh).' '.$this->labels['record deleted'];
                if (! $res) {
                        return false;
                }
                // Notify list
                if (@$this->notify['delete'] || @$this->notify['all']) {
                        $this->email_notify($oldvals, false);
                }
                // Note change in log table
                if ($this->logtable) {
                        $query = sprintf('INSERT INTO %s'
                                        .' (updated, user, host, operation, tab, rowkey, col, oldval, newval)'
                                        .' VALUES (NOW(), "%s", "%s", "delete", "%s", "%s", "%s", "%s", "")',
                                        $this->logtable, addslashes($this->get_server_var('REMOTE_USER')),
                                        addslashes($this->get_server_var('REMOTE_ADDR')), addslashes($this->tb),
                                        addslashes($this->rec), addslashes($key), addslashes(serialize($oldvals)));
                        $this->myquery($query, __LINE__);
                }
                // After trigger
                if ($this->exec_triggers('delete', 'after', $oldvals, $changed, $newvals) == false) {
                        return false;
                }
                return true;
        } /* }}} */

        function email_notify($old_vals, $new_vals) /* {{{ */
        {
                if (! function_exists('mail')) {
                        return false;
                }
                if ($old_vals != false && $new_vals != false) {
                        $action  = 'update';
                        $subject = 'Record updated in';
                        $body    = 'An item with '.$this->fdd[$this->key]['name'].' = '
                                .$this->key_delim.$this->rec.$this->key_delim .' was updated in';
                        $vals    = $new_vals;
                } elseif ($new_vals != false) {
                        $action  = 'insert';
                        $subject = 'Record added to';
                        $body    = 'A new item was added into';
                        $vals    = $new_vals;
                } elseif ($old_vals != false) {
                        $action  = 'delete';
                        $subject = 'Record deleted from';
                        $body    = 'An item was deleted from';
                        $vals    = $old_vals;
                } else {
                        return false;
                }
                $addr  = $this->get_server_var('REMOTE_ADDR');
                $user  = $this->get_server_var('REMOTE_USER');
                $body  = 'This notification e-mail was automatically generated by phpMyEdit.'."\n\n".$body;
                $body .= ' table '.$this->tb.' in MySQL database '.$this->db.' on '.$this->page_name;
                $body .= ' by '.($user == '' ? 'unknown user' : "user $user").' from '.$addr;
                $body .= ' at '.date('d/M/Y H:i').' with the following fields:'."\n\n";
                $i = 1;
                foreach ($vals as $k => $text) {
                        $name = isset($this->fdd[$k]['name~'])
                                ? $this->fdd[$k]['name~'] : $this->fdd[$k]['name'];
                        if ($action == 'update') {
                                if ($old_vals[$k] == $new_vals[$k]) {
                                        continue;
                                }
                                $body .= sprintf("[%02s] %s (%s)\n      WAS: %s\n      IS:  %s\n",
                                                $i, $name, $k, $old_vals[$k], $new_vals[$k]);
                        } else {
                                $body .= sprintf('[%02s] %s (%s): %s'."\n", $i, $name, $k, $text);
                        }
                        $i++;
                }
                $body    .= "\n--\r\n"; // \r is needed for signature separating
                $body    .= "phpMyEdit\ninstant MySQL table editor and code generator\n";
                $body    .= "http://platon.sk/projects/phpMyEdit/\n\n";
                $subject  = @$this->notify['prefix'].$subject.' '.$this->dbp.$this->tb;
                $subject  = trim($subject); // just for sure
                $wrap_w   = intval(@$this->notify['wrap']);
                $wrap_w > 0 || $wrap_w = 72;
                $from     = (string) @$this->notify['from'];
                $from != '' || $from = 'webmaster@'.strtolower($this->get_server_var('SERVER_NAME'));
                $headers  = 'From: '.$from."\n".'X-Mailer: PHP/'.phpversion().' (phpMyEdit)';
                $body     = wordwrap($body, $wrap_w, "\n", 1);
                $emails   = (array) $this->notify[$action] + (array) $this->notify['all'];
                foreach ($emails as $email) {
                        if (! empty($email)) {
                                mail(trim($email), $subject, $body, $headers);
                        }
                }
                return true;
        } /* }}} */

        /*
         * Apply triggers function
         * Run a (set of) trigger(s). $trigger can be an Array or a filename
         * Break and return false as soon as a trigger return false
         * we need a reference on $newvals to be able to change value before insert/update
         */
        function exec_triggers($op, $step, $oldvals, &$changed, &$newvals) /* {{{ */
        {
                if (! isset($this->triggers[$op][$step])) {
                        return true;
                }
                $ret  = true;
                $trig = $this->triggers[$op][$step];
                if (is_array($trig)) {
                        ksort($trig);
                        for ($t = reset($trig); $t !== false && $ret != false; $t = next($trig)) {
                                $ret = include($t);
                        }
                } else {
                        $ret = include($trig);
                }
                return $ret;
        } /* }}} */

        function exec_triggers_simple($op, $step) /* {{{ */
        {
                $oldvals = $newvals = $changed = array();
                return $this->exec_triggers($op, $step, $oldvals, $changed, $newvals);
        } /* }}} */
        
        /*
         * Recreate functions
         */
        function recreate_fdd($default_page_type = 'L') /* {{{ */
        {
                // TODO: one level deeper browsing
                $this->page_type = $default_page_type;
                $this->filter_operation() && $this->page_type = 'F';
                $this->view_operation()   && $this->page_type = 'V';
                if ($this->add_operation()
                                || $this->saveadd == $this->labels['Save']
                                || $this->moreadd == $this->labels['More']) {
                        $this->page_type = 'A';
                }
                if ($this->change_operation()
                                || $this->savechange == $this->labels['Save']
                                || $this->morechange == $this->labels['Apply']) {
                        $this->page_type = 'C';
                }
                if ($this->copy_operation() || $this->savecopy == $this->labels['Save']) {
                        $this->page_type = 'P';
                }
                if ($this->delete_operation() || $this->savedelete == $this->labels['Delete']) {
                        $this->page_type = 'D';
                }
                // Restore backups (if exists)
                foreach (array_keys($this->fdd) as $column) {
                        foreach (array_keys($this->fdd[$column]) as $col_option) {
                                if ($col_option[strlen($col_option) - 1] != '~')
                                        continue;

                                $this->fdd[$column][substr($col_option, 0, strlen($col_option) - 1)]
                                        = $this->fdd[$column][$col_option];
                                unset($this->fdd[$column][$col_option]);
                        }
                }
                foreach (array_keys($this->fdd) as $column) {
                        foreach (array_keys($this->fdd[$column]) as $col_option) {
                                if (! strchr($col_option, '|')) {
                                        continue;
                                }
                                $col_ar = explode('|', $col_option, 2);
                                if (! stristr($col_ar[1], $this->page_type)) {
                                        continue;
                                }
                                // Make field backups
                                $this->fdd[$column][$col_ar[0] .'~'] = $this->fdd[$column][$col_ar[0]];
                                $this->fdd[$column][$col_option.'~'] = $this->fdd[$column][$col_option];
                                // Set particular field
                                $this->fdd[$column][$col_ar[0]] = $this->fdd[$column][$col_option];
                                unset($this->fdd[$column][$col_option]);
                        }
                }
        } /* }}} */

        function recreate_displayed() /* {{{ */
        {
                $field_num            = 0;
                $num_fields_displayed = 0;
                $this->fds            = array();
                $this->fdn            = array();
                $this->displayed      = array();
                $this->guidance       = false;
                foreach (array_keys($this->fdd) as $key) {
                        if (preg_match('/^\d+$/', $key)) { // skipping numeric keys
                                continue;
                        }
                        $this->fds[$field_num] = $key;
                        $this->fdn[$key] = $field_num;
                        /* We must use here displayed() function, because displayed[] array
                           is not created yet. We will simultaneously create that array as well. */
                        if ($this->displayed[$field_num] = $this->displayed($field_num)) {
                                $num_fields_displayed++;
                        }
                        if (is_array(@$this->fdd[$key]['values']) && ! isset($this->fdd[$key]['values']['table'])) {
                                foreach ($this->fdd[$key]['values'] as $val) {
                                        $this->fdd[$key]['values2'][$val] = $val;
                                }
                                unset($this->fdd[$key]['values']);
                        }
                        isset($this->fdd[$key]['help']) && $this->guidance = true;
                        $this->fdd[$field_num] = $this->fdd[$key];
                        $field_num++;
                }
                $this->num_fds              = $field_num;
                $this->num_fields_displayed = $num_fields_displayed;
                $this->key_num              = array_search($this->key, $this->fds);
                /* Adds first displayed column into sorting fields by replacing last
                   array entry. Also remove duplicite values and change column names to
                   their particular field numbers.

                   Note that entries like [0]=>'9' [1]=>'-9' are correct and they will
                   have desirable sorting behaviour. So there is no need to remove them.
                 */
                $this->sfn = array_unique($this->sfn);
                $check_ar = array();
                foreach ($this->sfn as $key => $val) {
                        if (preg_match('/^[-]?\d+$/', $val)) { // skipping numeric keys
                                $val = abs($val);
                                if (in_array($val, $check_ar) || $this->password($val)) {
                                        unset($this->sfn[$key]);
                                } else {
                                        $check_ar[] = $val;
                                }
                                continue;
                        }
                        if ($val[0] == '-') {
                                $val = substr($val, 1);
                                $minus = '-';
                        } else {
                                $minus = '';
                        }
                        if (($val = array_search($val, $this->fds)) === false || $this->password($val)) {
                                unset($this->sfn[$key]);
                        } else {
                                $val = intval($val);
                                if (in_array($val, $check_ar)) {
                                        unset($this->sfn[$key]);
                                } else {
                                        $this->sfn[$key] = $minus.$val;
                                        $check_ar[] = $val;
                                }
                        }
                }
                $this->sfn = array_unique($this->sfn);
                return true;
        } /* }}} */

        function backward_compatibility() /* {{{ */
        {
                foreach (array_keys($this->fdd) as $column) {
                        // move ['required'] to ['js']['required']
                        if (! isset($this->fdd[$column]['js']['required']) && isset($this->fdd[$column]['required'])) {
                                $this->fdd[$column]['js']['required'] = $this->fdd[$column]['required'];
                        }
                        // move 'HWR' flags from ['options'] into ['input']
                        if (isset($this->fdd[$column]['options'])) {
                                stristr($this->fdd[$column]['options'], 'H') && $this->fdd[$column]['input'] .= 'H';
                                stristr($this->fdd[$column]['options'], 'W') && $this->fdd[$column]['input'] .= 'W';
                                stristr($this->fdd[$column]['options'], 'R') && $this->fdd[$column]['input'] .= 'R';
                        }
                }
        } /* }}} */

        /*
         * Error handling function
         */
        function error($message, $additional_info = '') /* {{{ */
        {
                echo '<h1>phpMyEdit error: ',htmlspecialchars($message),'</h1>',"\n";
                if ($additional_info != '') {
                        echo '<hr />',htmlspecialchars($additional_info);
                }
                return false;
        } /* }}} */

        /*
         * Database connection function
         */
        function connect() /* {{{ */
        {
                if (isset($this->dbh)) {
                        return true;
                }
                if (!isset($this->db)) {
                        $this->error('no database defined');
                        return false;
                }
                if (!isset ($this->tb)) {
                        $this->error('no table defined');
                        return false;
                }
                $this->dbh = @ini_get('allow_persistent')
                        ? @mysql_pconnect($this->hn, $this->un, $this->pw)
                        : @mysql_connect($this->hn, $this->un, $this->pw);
                if (!$this->dbh) {
                        $this->error('could not connect to MySQL');
                        return false;
                }
                return true;
        } /* }}} */

        /*
         * Database disconnection function
         */
        function disconnect() /* {{{ */
        {
                if ($this->close_dbh) {
                        @mysql_close($this->dbh);
                        $this->dbh = null;
                }
        } /* }}} */

        /*
         * The workhorse
         */
        function execute() /* {{{ */
        {
                //  DEBUG -  uncomment to enable
                /*
                //phpinfo();
                $this->print_get_vars();
                $this->print_post_vars();
                $this->print_vars();
                echo "<pre>query opts:\n";
                echo print_r($this->query_opts);
                echo "</pre>\n";
                echo "<pre>get vars:\n";
                echo print_r($this->get_opts);
                echo "</pre>\n";
                 */

                // Let's do explicit quoting - it's safer
                set_magic_quotes_runtime(0);
                // Checking if language file inclusion was successful
                if (! is_array($this->labels)) {
                        $this->error('could not locate language files', 'searched path: '.$this->dir['lang']);
                        return false;
                }
                // Database connection
                if ($this->connect() == false) {
                        return false;
                }

                /*
                 * ======================================================================
                 * Pass 3: process any updates generated if the user has selected
                 * a save or cancel button during Pass 2
                 * ======================================================================
                 */
                // Cancel button - Cancel Triggers
                if ($this->add_canceled() || $this->copy_canceled()) {
                        $this->exec_triggers_simple('insert', 'cancel');
                }
                if ($this->view_canceled()) {
                        $this->exec_triggers_simple('select', 'cancel');
                }
                if ($this->change_canceled()) {
                        $this->exec_triggers_simple('update', 'cancel');
                }
                if ($this->delete_canceled()) {
                        $this->exec_triggers_simple('delete', 'cancel');
                }
                // Save/More Button - database operations
                if ($this->saveadd == $this->labels['Save'] || $this->savecopy == $this->labels['Save']) {
                        $this->add_enabled() && $this->do_add_record();
                        unset($this->saveadd);
                        unset($this->savecopy);
                        $this->recreate_fdd();
                }
                elseif ($this->moreadd == $this->labels['More']) {
                        $this->add_enabled() && $this->do_add_record();
                        $this->operation = $this->labels['Add']; // to force add operation
                        $this->recreate_fdd();
                        $this->recreate_displayed();
                        $this->backward_compatibility();
                }
                elseif ($this->savechange == $this->labels['Save']) {
                        $this->change_enabled() && $this->do_change_record();
                        unset($this->savechange);
                        $this->recreate_fdd();
                }
                elseif ($this->morechange == $this->labels['Apply']) {
                        $this->change_enabled() && $this->do_change_record();
                        $this->operation = $this->labels['Change']; // to force change operation
                        $this->recreate_fdd();
                        $this->recreate_displayed();
                        $this->backward_compatibility();
                }
                elseif ($this->savedelete == $this->labels['Delete']) {
                        $this->delete_enabled() && $this->do_delete_record();
                        unset($this->savedelete);
                        $this->recreate_fdd();
                }

                /*
                 * ======================================================================
                 * Pass 2: display an input/edit/confirmation screen if the user has
                 * selected an editing button on Pass 1 through this page
                 * ======================================================================
                 */
                if ($this->add_operation()
                                || $this->change_operation() || $this->delete_operation()
                                || $this->view_operation()   || $this->copy_operation()) {
                        $this->display_record();
                }

                /*
                 * ======================================================================
                 * Pass 1 and Pass 3: display the MySQL table in a scrolling window on
                 * the screen (skip this step in 'Add More' mode)
                 * ======================================================================
                 */
                else {
                        $this->list_table();
                }

                $this->disconnect();
                if ($this->display['time'] && $this->timer != null) {
                        echo $this->timer->end(),' miliseconds';
                }
        } /* }}} */

        /*
         * Class constructor
         */
        function phpMyEdit($opts) /* {{{ */
        {
                // Set desirable error reporting level
                $error_reporting = error_reporting(E_ALL & ~E_NOTICE);
                // Database handle variables
                if (isset($opts['dbh'])) {
                        $this->close_dbh = false;
                        $this->dbh = $opts['dbh'];
                        $this->dbp = '';
                } else {
                        $this->close_dbh = true;
                        $this->dbh = null;
                        $this->dbp = $opts['db'].'.';
                        $this->hn  = $opts['hn'];
                        $this->un  = $opts['un'];
                        $this->pw  = $opts['pw'];
                        $this->db  = $opts['db'];
                }
                $this->tb  = $opts['tb'];
                // Other variables
                $this->key       = $opts['key'];
                $this->key_type  = $opts['key_type'];
                $this->inc       = $opts['inc'];
                $this->options   = $opts['options'];
                $this->fdd       = $opts['fdd'];
                $this->multiple  = intval($opts['multiple']);
                $this->multiple <= 0 && $this->multiple = 2;
                $this->filters   = @$opts['filters'];
                $this->triggers  = @$opts['triggers'];
                $this->notify    = @$opts['notify'];
                $this->logtable  = @$opts['logtable'];
                $this->page_name = @$opts['page_name'];
                if (! isset($this->page_name)) {
                        $this->page_name = basename($this->get_server_var('PHP_SELF'));
                        isset($this->page_name) || $this->page_name = $this->tb;
                } 
                $this->display['query'] = @$opts['display']['query'];
                $this->display['sort']  = @$opts['display']['sort'];
                $this->display['time']  = @$opts['display']['time'];
                if ($this->display['time']) {
                        $this->timer = new phpMyEdit_timer();
                }
                $this->display['tabs'] = isset($opts['display']['tabs'])
                        ? $opts['display']['tabs'] : true;
                $this->display['form'] = isset($opts['display']['form'])
                        ? $opts['display']['form'] : true;
                $this->display['num_records'] = isset($opts['display']['num_records'])
                        ? $opts['display']['num_records'] : true;
                $this->display['num_pages'] = isset($opts['display']['num_pages'])
                        ? $opts['display']['num_pages'] : true;
                // Creating directory variables
                $this->dir['root'] = dirname(realpath(__FILE__))
                        . (strlen(dirname(realpath(__FILE__))) > 0 ? '/' : '');
                $this->dir['lang'] = $this->dir['root'].'lang/';
                // Creating URL variables
                $this->url['images'] = 'images/';
                isset($opts['url']['images']) && $this->url['images'] = $opts['url']['images'];
                // CSS classes policy
                $this->css = @$opts['css'];
                !isset($this->css['separator']) && $this->css['separator'] = '-';
                !isset($this->css['prefix'])    && $this->css['prefix']    = 'pme';
                !isset($this->css['page_type']) && $this->css['page_type'] = false;
                !isset($this->css['position'])  && $this->css['position']  = false;
                !isset($this->css['divider'])   && $this->css['divider']   = 2;
                $this->css['divider'] = intval(@$this->css['divider']);
                // JS overall configuration
                $this->js = @$opts['js'];
                !isset($this->js['prefix']) && $this->js['prefix'] = 'PME_js_';
                // DHTML overall configuration
                $this->dhtml = @$opts['dhtml'];
                !isset($this->dhtml['prefix']) && $this->dhtml['prefix'] = 'PME_dhtml_';
                // Navigation
                $this->navigation = @$opts['navigation'];
                if (! $this->nav_buttons() && ! $this->nav_text_links() && ! $this->nav_graphic_links()) {
                        $this->navigation .= 'B'; // buttons are default
                }
                if (! $this->nav_up() && ! $this->nav_down()) {
                        $this->navigation .= 'D'; // down position is default
                }
                $this->buttons = $opts['buttons'];
                // Language labels (must go after navigation)
                $this->labels = $this->make_language_labels(isset($opts['language'])
                                ? $opts['language'] : $this->get_server_var('HTTP_ACCEPT_LANGUAGE'));
                // CGI variables
                $this->cgi = @$opts['cgi'];
                $this->cgi['persist'] = '';
                if (@is_array($opts['cgi']['persist'])) {
                        foreach ($opts['cgi']['persist'] as $key => $val) {
                                if (is_array($val)) {
                                        foreach($val as $key2 => $val2) {
                                                $this->cgi['persist'] .= '&'.rawurlencode($key)
                                                        .'['.rawurlencode($key2).']='.rawurlencode($val2);
                                        }
                                } else {
                                        $this->cgi['persist'] .= '&'.rawurlencode($key).'='.rawurlencode($val);
                                }
                        }
                }
                foreach (array('operation', 'sys', 'data') as $type) {
                        if (! isset($this->cgi['prefix'][$type])) {
                                $this->cgi['prefix'][$type] = $this->get_default_cgi_prefix($type);
                        }
                }
                // Sorting variables
                $this->sfn   = $this->get_sys_cgi_var('sfn');
                isset($this->sfn)             || $this->sfn          = array();
                is_array($this->sfn)          || $this->sfn          = array($this->sfn);
                isset($opts['sort_field'])    || $opts['sort_field'] = array();
                is_array($opts['sort_field']) || $opts['sort_field'] = array($opts['sort_field']);
                $this->sfn   = array_merge($this->sfn, $opts['sort_field']);
                // Form variables all around
                $this->fl    = intval($this->get_sys_cgi_var('fl'));
                $this->fm    = intval($this->get_sys_cgi_var('fm'));
//              $old_page = ceil($this->fm / abs($this->inc)) + 1;
                $this->qfn   = $this->get_sys_cgi_var('qfn');
                $this->sw    = $this->get_sys_cgi_var('sw');
                $this->rec   = $this->get_sys_cgi_var('rec', '');
                $this->navop = $this->get_sys_cgi_var('navop');
                $navfmup     = $this->get_sys_cgi_var('navfmup');
                $navfmdown   = $this->get_sys_cgi_var('navfmdown');
                $navpnup     = $this->get_sys_cgi_var('navpnup');
                $navpndown   = $this->get_sys_cgi_var('navpndown');
                if($navfmdown!=NULL && $navfmdown != $this->fm) $this->navfm = $navfmdown;
                elseif($navfmup!=NULL && $navfmup != $this->fm) $this->navfm = $navfmup;
                elseif($navpndown!=NULL && ($navpndown-1)*$this->inc != $this->fm) $this->navfm = ($navpndown-1)*$this->inc;
                elseif($navpnup!=NULL && ($navpnup-1)*$this->inc != $this->fm) $this->navfm = ($navpnup-1)*$this->inc;
                else $this->navfm = $this->fm; 
                $this->operation = $this->get_sys_cgi_var('operation');
                $oper_prefix_len = strlen($this->cgi['prefix']['operation']);
                if (! strncmp($this->cgi['prefix']['operation'], $this->operation, $oper_prefix_len)) {
                        $this->operation = $this->labels[substr($this->operation, $oper_prefix_len)];
                }
                $this->saveadd      = $this->get_sys_cgi_var('saveadd');
                $this->moreadd      = $this->get_sys_cgi_var('moreadd');
                $this->canceladd    = $this->get_sys_cgi_var('canceladd');
                $this->savechange   = $this->get_sys_cgi_var('savechange');
                $this->morechange   = $this->get_sys_cgi_var('morechange');
                $this->cancelchange = $this->get_sys_cgi_var('cancelchange');
                $this->savecopy     = $this->get_sys_cgi_var('savecopy');
                $this->cancelcopy   = $this->get_sys_cgi_var('cancelcopy');
                $this->savedelete   = $this->get_sys_cgi_var('savedelete');
                $this->canceldelete = $this->get_sys_cgi_var('canceldelete');
                $this->cancelview   = $this->get_sys_cgi_var('cancelview');
                // Filter setting
                if (isset($this->sw)) {
                        $this->sw == $this->labels['Search'] && $this->fl = 1;
                        $this->sw == $this->labels['Hide']   && $this->fl = 0;
                        //$this->sw == $this->labels['Clear']  && $this->fl = 0;
                }
                // TAB names
                $this->tabs = array();
                // Setting key_delim according to key_type
                if ($this->key_type == 'real') {
                        /* If 'real' key_type does not work,
                           try change MySQL datatype from float to double */
                        $this->rec = doubleval($this->rec);
                        $this->key_delim = '';
                } elseif ($this->key_type == 'int') {
                        $this->rec = intval($this->rec);
                        $this->key_delim = '';
                } else {
                        $this->key_delim = '"';
                        // $this->rec remains unmodified
                }
                // Specific $fdd modifications depending on performed action
                $this->recreate_fdd();
                // Extract SQL Field Names and number of fields
                $this->recreate_displayed();
                // Issue backward compatibility
                $this->backward_compatibility();
                // Gathering query options
                $this->gather_query_opts();
                // Call to action
                !isset($opts['execute']) && $opts['execute'] = 1;
                $opts['execute'] && $this->execute();
                // Restore original error reporting level
                error_reporting($error_reporting);
        } /* }}} */

}

/* Modeline for ViM {{{
 * vim:set ts=4:
 * vim600:fdm=marker fdl=0 fdc=0:
 * }}} */

?>