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/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2009 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * Scripts related to the Link dialog window (see fck_link.html).
 */

var dialog      = window.parent ;
var oEditor = dialog.InnerDialogLoaded() ;

var FCK                 = oEditor.FCK ;
var FCKLang             = oEditor.FCKLang ;
var FCKConfig   = oEditor.FCKConfig ;
var FCKRegexLib = oEditor.FCKRegexLib ;
var FCKTools    = oEditor.FCKTools ;

//#### Dialog Tabs

// Set the dialog tabs.
dialog.AddTab( 'Info', FCKLang.DlgLnkInfoTab ) ;

if ( !FCKConfig.LinkDlgHideTarget )
        dialog.AddTab( 'Target', FCKLang.DlgLnkTargetTab, true ) ;

if ( FCKConfig.LinkUpload )
        dialog.AddTab( 'Upload', FCKLang.DlgLnkUpload, true ) ;

if ( !FCKConfig.LinkDlgHideAdvanced )
        dialog.AddTab( 'Advanced', FCKLang.DlgAdvancedTag ) ;

// Function called when a dialog tag is selected.
function OnDialogTabChange( tabCode )
{
        ShowE('divInfo'         , ( tabCode == 'Info' ) ) ;
        ShowE('divTarget'       , ( tabCode == 'Target' ) ) ;
        ShowE('divUpload'       , ( tabCode == 'Upload' ) ) ;
        ShowE('divAttribs'      , ( tabCode == 'Advanced' ) ) ;

        dialog.SetAutoSize( true ) ;
}

//#### Regular Expressions library.
var oRegex = new Object() ;

oRegex.UriProtocol = /^(((http|https|ftp|news):\/\/)|mailto:)/gi ;

oRegex.UrlOnChangeProtocol = /^(http|https|ftp|news):\/\/(?=.)/gi ;

oRegex.UrlOnChangeTestOther = /^((javascript:)|[#\/\.])/gi ;

oRegex.ReserveTarget = /^_(blank|self|top|parent)$/i ;

oRegex.PopupUri = /^javascript:void\(\s*window.open\(\s*'([^']+)'\s*,\s*(?:'([^']*)'|null)\s*,\s*'([^']*)'\s*\)\s*\)\s*$/ ;

// Accessible popups
oRegex.OnClickPopup = /^\s*on[cC]lick="\s*window.open\(\s*this\.href\s*,\s*(?:'([^']*)'|null)\s*,\s*'([^']*)'\s*\)\s*;\s*return\s*false;*\s*"$/ ;

oRegex.PopupFeatures = /(?:^|,)([^=]+)=(\d+|yes|no)/gi ;

//#### Parser Functions

var oParser = new Object() ;

// This method simply returns the two inputs in numerical order. You can even
// provide strings, as the method would parseInt() the values.
oParser.SortNumerical = function(a, b)
{
        return parseInt( a, 10 ) - parseInt( b, 10 ) ;
}

oParser.ParseEMailParams = function(sParams)
{
        // Initialize the oEMailParams object.
        var oEMailParams = new Object() ;
        oEMailParams.Subject = '' ;
        oEMailParams.Body = '' ;

        var aMatch = sParams.match( /(^|^\?|&)subject=([^&]+)/i ) ;
        if ( aMatch ) oEMailParams.Subject = decodeURIComponent( aMatch[2] ) ;

        aMatch = sParams.match( /(^|^\?|&)body=([^&]+)/i ) ;
        if ( aMatch ) oEMailParams.Body = decodeURIComponent( aMatch[2] ) ;

        return oEMailParams ;
}

// This method returns either an object containing the email info, or FALSE
// if the parameter is not an email link.
oParser.ParseEMailUri = function( sUrl )
{
        // Initializes the EMailInfo object.
        var oEMailInfo = new Object() ;
        oEMailInfo.Address = '' ;
        oEMailInfo.Subject = '' ;
        oEMailInfo.Body = '' ;

        var aLinkInfo = sUrl.match( /^(\w+):(.*)$/ ) ;
        if ( aLinkInfo && aLinkInfo[1] == 'mailto' )
        {
                // This seems to be an unprotected email link.
                var aParts = aLinkInfo[2].match( /^([^\?]+)\??(.+)?/ ) ;
                if ( aParts )
                {
                        // Set the e-mail address.
                        oEMailInfo.Address = aParts[1] ;

                        // Look for the optional e-mail parameters.
                        if ( aParts[2] )
                        {
                                var oEMailParams = oParser.ParseEMailParams( aParts[2] ) ;
                                oEMailInfo.Subject = oEMailParams.Subject ;
                                oEMailInfo.Body = oEMailParams.Body ;
                        }
                }
                return oEMailInfo ;
        }
        else if ( aLinkInfo && aLinkInfo[1] == 'javascript' )
        {
                // This may be a protected email.

                // Try to match the url against the EMailProtectionFunction.
                var func = FCKConfig.EMailProtectionFunction ;
                if ( func != null )
                {
                        try
                        {
                                // Escape special chars.
                                func = func.replace( /([\/^$*+.?()\[\]])/g, '\\$1' ) ;

                                // Define the possible keys.
                                var keys = new Array('NAME', 'DOMAIN', 'SUBJECT', 'BODY') ;

                                // Get the order of the keys (hold them in the array <pos>) and
                                // the function replaced by regular expression patterns.
                                var sFunc = func ;
                                var pos = new Array() ;
                                for ( var i = 0 ; i < keys.length ; i ++ )
                                {
                                        var rexp = new RegExp( keys[i] ) ;
                                        var p = func.search( rexp ) ;
                                        if ( p >= 0 )
                                        {
                                                sFunc = sFunc.replace( rexp, '\'([^\']*)\'' ) ;
                                                pos[pos.length] = p + ':' + keys[i] ;
                                        }
                                }

                                // Sort the available keys.
                                pos.sort( oParser.SortNumerical ) ;

                                // Replace the excaped single quotes in the url, such they do
                                // not affect the regexp afterwards.
                                aLinkInfo[2] = aLinkInfo[2].replace( /\\'/g, '###SINGLE_QUOTE###' ) ;

                                // Create the regexp and execute it.
                                var rFunc = new RegExp( '^' + sFunc + '$' ) ;
                                var aMatch = rFunc.exec( aLinkInfo[2] ) ;
                                if ( aMatch )
                                {
                                        var aInfo = new Array();
                                        for ( var i = 1 ; i < aMatch.length ; i ++ )
                                        {
                                                var k = pos[i-1].match(/^\d+:(.+)$/) ;
                                                aInfo[k[1]] = aMatch[i].replace(/###SINGLE_QUOTE###/g, '\'') ;
                                        }

                                        // Fill the EMailInfo object that will be returned
                                        oEMailInfo.Address = aInfo['NAME'] + '@' + aInfo['DOMAIN'] ;
                                        oEMailInfo.Subject = decodeURIComponent( aInfo['SUBJECT'] ) ;
                                        oEMailInfo.Body = decodeURIComponent( aInfo['BODY'] ) ;

                                        return oEMailInfo ;
                                }
                        }
                        catch (e)
                        {
                        }
                }

                // Try to match the email against the encode protection.
                var aMatch = aLinkInfo[2].match( /^(?:void\()?location\.href='mailto:'\+(String\.fromCharCode\([\d,]+\))\+'(.*)'\)?$/ ) ;
                if ( aMatch )
                {
                        // The link is encoded
                        oEMailInfo.Address = eval( aMatch[1] ) ;
                        if ( aMatch[2] )
                        {
                                var oEMailParams = oParser.ParseEMailParams( aMatch[2] ) ;
                                oEMailInfo.Subject = oEMailParams.Subject ;
                                oEMailInfo.Body = oEMailParams.Body ;
                        }
                        return oEMailInfo ;
                }
        }
        return false;
}

oParser.CreateEMailUri = function( address, subject, body )
{
        // Switch for the EMailProtection setting.
        switch ( FCKConfig.EMailProtection )
        {
                case 'function' :
                        var func = FCKConfig.EMailProtectionFunction ;
                        if ( func == null )
                        {
                                if ( FCKConfig.Debug )
                                {
                                        alert('EMailProtection alert!\nNo function defined. Please set "FCKConfig.EMailProtectionFunction"') ;
                                }
                                return '';
                        }

                        // Split the email address into name and domain parts.
                        var aAddressParts = address.split( '@', 2 ) ;
                        if ( aAddressParts[1] == undefined )
                        {
                                aAddressParts[1] = '' ;
                        }

                        // Replace the keys by their values (embedded in single quotes).
                        func = func.replace(/NAME/g, "'" + aAddressParts[0].replace(/'/g, '\\\'') + "'") ;
                        func = func.replace(/DOMAIN/g, "'" + aAddressParts[1].replace(/'/g, '\\\'') + "'") ;
                        func = func.replace(/SUBJECT/g, "'" + encodeURIComponent( subject ).replace(/'/g, '\\\'') + "'") ;
                        func = func.replace(/BODY/g, "'" + encodeURIComponent( body ).replace(/'/g, '\\\'') + "'") ;

                        return 'javascript:' + func ;

                case 'encode' :
                        var aParams = [] ;
                        var aAddressCode = [] ;

                        if ( subject.length > 0 )
                                aParams.push( 'subject='+ encodeURIComponent( subject ) ) ;
                        if ( body.length > 0 )
                                aParams.push( 'body=' + encodeURIComponent( body ) ) ;
                        for ( var i = 0 ; i < address.length ; i++ )
                                aAddressCode.push( address.charCodeAt( i ) ) ;

                        return 'javascript:void(location.href=\'mailto:\'+String.fromCharCode(' + aAddressCode.join( ',' ) + ')+\'?' + aParams.join( '&' ) + '\')' ;
        }

        // EMailProtection 'none'

        var sBaseUri = 'mailto:' + address ;

        var sParams = '' ;

        if ( subject.length > 0 )
                sParams = '?subject=' + encodeURIComponent( subject ) ;

        if ( body.length > 0 )
        {
                sParams += ( sParams.length == 0 ? '?' : '&' ) ;
                sParams += 'body=' + encodeURIComponent( body ) ;
        }

        return sBaseUri + sParams ;
}

//#### Initialization Code

// oLink: The actual selected link in the editor.
var oLink = dialog.Selection.GetSelection().MoveToAncestorNode( 'A' ) ;
if ( oLink )
        FCK.Selection.SelectNode( oLink ) ;

window.onload = function()
{
        // Translate the dialog box texts.
        oEditor.FCKLanguageManager.TranslatePage(document) ;

        // Fill the Anchor Names and Ids combos.
        LoadAnchorNamesAndIds() ;

        // Load the selected link information (if any).
        LoadSelection() ;

        // Update the dialog box.
        SetLinkType( GetE('cmbLinkType').value ) ;

        // Show/Hide the "Browse Server" button.
        GetE('divBrowseServer').style.display = FCKConfig.LinkBrowser ? '' : 'none' ;

        // Show the initial dialog content.
        GetE('divInfo').style.display = '' ;

        // Set the actual uploader URL.
        if ( FCKConfig.LinkUpload )
                GetE('frmUpload').action = FCKConfig.LinkUploadURL ;

        // Set the default target (from configuration).
        SetDefaultTarget() ;

        // Activate the "OK" button.
        dialog.SetOkButton( true ) ;

        // Select the first field.
        switch( GetE('cmbLinkType').value )
        {
                case 'url' :
                        SelectField( 'txtUrl' ) ;
                        break ;
                case 'email' :
                        SelectField( 'txtEMailAddress' ) ;
                        break ;
                case 'anchor' :
                        if ( GetE('divSelAnchor').style.display != 'none' )
                                SelectField( 'cmbAnchorName' ) ;
                        else
                                SelectField( 'cmbLinkType' ) ;
        }
}

var bHasAnchors ;

function LoadAnchorNamesAndIds()
{
        // Since version 2.0, the anchors are replaced in the DOM by IMGs so the user see the icon
        // to edit them. So, we must look for that images now.
        var aAnchors = new Array() ;
        var i ;
        var oImages = oEditor.FCK.EditorDocument.getElementsByTagName( 'IMG' ) ;
        for( i = 0 ; i < oImages.length ; i++ )
        {
                if ( oImages[i].getAttribute('_fckanchor') )
                        aAnchors[ aAnchors.length ] = oEditor.FCK.GetRealElement( oImages[i] ) ;
        }

        // Add also real anchors
        var oLinks = oEditor.FCK.EditorDocument.getElementsByTagName( 'A' ) ;
        for( i = 0 ; i < oLinks.length ; i++ )
        {
                if ( oLinks[i].name && ( oLinks[i].name.length > 0 ) )
                        aAnchors[ aAnchors.length ] = oLinks[i] ;
        }

        var aIds = FCKTools.GetAllChildrenIds( oEditor.FCK.EditorDocument.body ) ;

        bHasAnchors = ( aAnchors.length > 0 || aIds.length > 0 ) ;

        for ( i = 0 ; i < aAnchors.length ; i++ )
        {
                var sName = aAnchors[i].name ;
                if ( sName && sName.length > 0 )
                        FCKTools.AddSelectOption( GetE('cmbAnchorName'), sName, sName ) ;
        }

        for ( i = 0 ; i < aIds.length ; i++ )
        {
                FCKTools.AddSelectOption( GetE('cmbAnchorId'), aIds[i], aIds[i] ) ;
        }

        ShowE( 'divSelAnchor'   , bHasAnchors ) ;
        ShowE( 'divNoAnchor'    , !bHasAnchors ) ;
}

function LoadSelection()
{
        if ( !oLink ) return ;

        var sType = 'url' ;

        // Get the actual Link href.
        var sHRef = oLink.getAttribute( '_fcksavedurl' ) ;
        if ( sHRef == null )
                sHRef = oLink.getAttribute( 'href' , 2 ) || '' ;

        // Look for a popup javascript link.
        var oPopupMatch = oRegex.PopupUri.exec( sHRef ) ;
        if( oPopupMatch )
        {
                GetE('cmbTarget').value = 'popup' ;
                sHRef = oPopupMatch[1] ;
                FillPopupFields( oPopupMatch[2], oPopupMatch[3] ) ;
                SetTarget( 'popup' ) ;
        }

        // Accessible popups, the popup data is in the onclick attribute
        if ( !oPopupMatch )
        {
                var onclick = oLink.getAttribute( 'onclick_fckprotectedatt' ) ;
                if ( onclick )
                {
                        // Decode the protected string
                        onclick = decodeURIComponent( onclick ) ;

                        oPopupMatch = oRegex.OnClickPopup.exec( onclick ) ;
                        if( oPopupMatch )
                        {
                                GetE( 'cmbTarget' ).value = 'popup' ;
                                FillPopupFields( oPopupMatch[1], oPopupMatch[2] ) ;
                                SetTarget( 'popup' ) ;
                        }
                }
        }

        // Search for the protocol.
        var sProtocol = oRegex.UriProtocol.exec( sHRef ) ;

        // Search for a protected email link.
        var oEMailInfo = oParser.ParseEMailUri( sHRef );

        if ( oEMailInfo )
        {
                sType = 'email' ;

                GetE('txtEMailAddress').value = oEMailInfo.Address ;
                GetE('txtEMailSubject').value = oEMailInfo.Subject ;
                GetE('txtEMailBody').value    = oEMailInfo.Body ;
        }
        else if ( sProtocol )
        {
                sProtocol = sProtocol[0].toLowerCase() ;
                GetE('cmbLinkProtocol').value = sProtocol ;

                // Remove the protocol and get the remaining URL.
                var sUrl = sHRef.replace( oRegex.UriProtocol, '' ) ;
                sType = 'url' ;
                GetE('txtUrl').value = sUrl ;
        }
        else if ( sHRef.substr(0,1) == '#' && sHRef.length > 1 )        // It is an anchor link.
        {
                sType = 'anchor' ;
                GetE('cmbAnchorName').value = GetE('cmbAnchorId').value = sHRef.substr(1) ;
        }
        else                                    // It is another type of link.
        {
                sType = 'url' ;

                GetE('cmbLinkProtocol').value = '' ;
                GetE('txtUrl').value = sHRef ;
        }

        if ( !oPopupMatch )
        {
                // Get the target.
                var sTarget = oLink.target ;

                if ( sTarget && sTarget.length > 0 )
                {
                        if ( oRegex.ReserveTarget.test( sTarget ) )
                        {
                                sTarget = sTarget.toLowerCase() ;
                                GetE('cmbTarget').value = sTarget ;
                        }
                        else
                                GetE('cmbTarget').value = 'frame' ;
                        GetE('txtTargetFrame').value = sTarget ;
                }
        }

        // Get Advances Attributes
        GetE('txtAttId').value                  = oLink.id ;
        GetE('txtAttName').value                = oLink.name ;
        GetE('cmbAttLangDir').value             = oLink.dir ;
        GetE('txtAttLangCode').value    = oLink.lang ;
        GetE('txtAttAccessKey').value   = oLink.accessKey ;
        GetE('txtAttTabIndex').value    = oLink.tabIndex <= 0 ? '' : oLink.tabIndex ;
        GetE('txtAttTitle').value               = oLink.title ;
        GetE('txtAttContentType').value = oLink.type ;
        GetE('txtAttCharSet').value             = oLink.charset ;

        var sClass ;
        if ( oEditor.FCKBrowserInfo.IsIE )
        {
                sClass  = oLink.getAttribute('className',2) || '' ;
                // Clean up temporary classes for internal use:
                sClass = sClass.replace( FCKRegexLib.FCK_Class, '' ) ;

                GetE('txtAttStyle').value       = oLink.style.cssText ;
        }
        else
        {
                sClass  = oLink.getAttribute('class',2) || '' ;
                GetE('txtAttStyle').value       = oLink.getAttribute('style',2) || '' ;
        }
        GetE('txtAttClasses').value     = sClass ;

        // Update the Link type combo.
        GetE('cmbLinkType').value = sType ;
}

//#### Link type selection.
function SetLinkType( linkType )
{
        ShowE('divLinkTypeUrl'          , (linkType == 'url') ) ;
        ShowE('divLinkTypeAnchor'       , (linkType == 'anchor') ) ;
        ShowE('divLinkTypeEMail'        , (linkType == 'email') ) ;

        if ( !FCKConfig.LinkDlgHideTarget )
                dialog.SetTabVisibility( 'Target'       , (linkType == 'url') ) ;

        if ( FCKConfig.LinkUpload )
                dialog.SetTabVisibility( 'Upload'       , (linkType == 'url') ) ;

        if ( !FCKConfig.LinkDlgHideAdvanced )
                dialog.SetTabVisibility( 'Advanced'     , (linkType != 'anchor' || bHasAnchors) ) ;

        if ( linkType == 'email' )
                dialog.SetAutoSize( true ) ;
}

//#### Target type selection.
function SetTarget( targetType )
{
        GetE('tdTargetFrame').style.display     = ( targetType == 'popup' ? 'none' : '' ) ;
        GetE('tdPopupName').style.display       =
        GetE('tablePopupFeatures').style.display = ( targetType == 'popup' ? '' : 'none' ) ;

        switch ( targetType )
        {
                case "_blank" :
                case "_self" :
                case "_parent" :
                case "_top" :
                        GetE('txtTargetFrame').value = targetType ;
                        break ;
                case "" :
                        GetE('txtTargetFrame').value = '' ;
                        break ;
        }

        if ( targetType == 'popup' )
                dialog.SetAutoSize( true ) ;
}

//#### Called while the user types the URL.
function OnUrlChange()
{
        var sUrl = GetE('txtUrl').value ;
        var sProtocol = oRegex.UrlOnChangeProtocol.exec( sUrl ) ;

        if ( sProtocol )
        {
                sUrl = sUrl.substr( sProtocol[0].length ) ;
                GetE('txtUrl').value = sUrl ;
                GetE('cmbLinkProtocol').value = sProtocol[0].toLowerCase() ;
        }
        else if ( oRegex.UrlOnChangeTestOther.test( sUrl ) )
        {
                GetE('cmbLinkProtocol').value = '' ;
        }
}

//#### Called while the user types the target name.
function OnTargetNameChange()
{
        var sFrame = GetE('txtTargetFrame').value ;

        if ( sFrame.length == 0 )
                GetE('cmbTarget').value = '' ;
        else if ( oRegex.ReserveTarget.test( sFrame ) )
                GetE('cmbTarget').value = sFrame.toLowerCase() ;
        else
                GetE('cmbTarget').value = 'frame' ;
}

// Accessible popups
function BuildOnClickPopup()
{
        var sWindowName = "'" + GetE('txtPopupName').value.replace(/\W/gi, "") + "'" ;

        var sFeatures = '' ;
        var aChkFeatures = document.getElementsByName( 'chkFeature' ) ;
        for ( var i = 0 ; i < aChkFeatures.length ; i++ )
        {
                if ( i > 0 ) sFeatures += ',' ;
                sFeatures += aChkFeatures[i].value + '=' + ( aChkFeatures[i].checked ? 'yes' : 'no' ) ;
        }

        if ( GetE('txtPopupWidth').value.length > 0 )   sFeatures += ',width=' + GetE('txtPopupWidth').value ;
        if ( GetE('txtPopupHeight').value.length > 0 )  sFeatures += ',height=' + GetE('txtPopupHeight').value ;
        if ( GetE('txtPopupLeft').value.length > 0 )    sFeatures += ',left=' + GetE('txtPopupLeft').value ;
        if ( GetE('txtPopupTop').value.length > 0 )             sFeatures += ',top=' + GetE('txtPopupTop').value ;

        if ( sFeatures != '' )
                sFeatures = sFeatures + ",status" ;

        return ( "window.open(this.href," + sWindowName + ",'" + sFeatures + "'); return false" ) ;
}

//#### Fills all Popup related fields.
function FillPopupFields( windowName, features )
{
        if ( windowName )
                GetE('txtPopupName').value = windowName ;

        var oFeatures = new Object() ;
        var oFeaturesMatch ;
        while( ( oFeaturesMatch = oRegex.PopupFeatures.exec( features ) ) != null )
        {
                var sValue = oFeaturesMatch[2] ;
                if ( sValue == ( 'yes' || '1' ) )
                        oFeatures[ oFeaturesMatch[1] ] = true ;
                else if ( ! isNaN( sValue ) && sValue != 0 )
                        oFeatures[ oFeaturesMatch[1] ] = sValue ;
        }

        // Update all features check boxes.
        var aChkFeatures = document.getElementsByName('chkFeature') ;
        for ( var i = 0 ; i < aChkFeatures.length ; i++ )
        {
                if ( oFeatures[ aChkFeatures[i].value ] )
                        aChkFeatures[i].checked = true ;
        }

        // Update position and size text boxes.
        if ( oFeatures['width'] )       GetE('txtPopupWidth').value             = oFeatures['width'] ;
        if ( oFeatures['height'] )      GetE('txtPopupHeight').value    = oFeatures['height'] ;
        if ( oFeatures['left'] )        GetE('txtPopupLeft').value              = oFeatures['left'] ;
        if ( oFeatures['top'] )         GetE('txtPopupTop').value               = oFeatures['top'] ;
}

//#### The OK button was hit.
function Ok()
{
        var sUri, sInnerHtml ;
        oEditor.FCKUndo.SaveUndoStep() ;

        switch ( GetE('cmbLinkType').value )
        {
                case 'url' :
                        sUri = GetE('txtUrl').value ;

                        if ( sUri.length == 0 )
                        {
                                alert( FCKLang.DlnLnkMsgNoUrl ) ;
                                return false ;
                        }

                        sUri = GetE('cmbLinkProtocol').value + sUri ;

                        break ;

                case 'email' :
                        sUri = GetE('txtEMailAddress').value ;

                        if ( sUri.length == 0 )
                        {
                                alert( FCKLang.DlnLnkMsgNoEMail ) ;
                                return false ;
                        }

                        sUri = oParser.CreateEMailUri(
                                sUri,
                                GetE('txtEMailSubject').value,
                                GetE('txtEMailBody').value ) ;
                        break ;

                case 'anchor' :
                        var sAnchor = GetE('cmbAnchorName').value ;
                        if ( sAnchor.length == 0 ) sAnchor = GetE('cmbAnchorId').value ;

                        if ( sAnchor.length == 0 )
                        {
                                alert( FCKLang.DlnLnkMsgNoAnchor ) ;
                                return false ;
                        }

                        sUri = '#' + sAnchor ;
                        break ;
        }

        // If no link is selected, create a new one (it may result in more than one link creation - #220).
        var aLinks = oLink ? [ oLink ] : oEditor.FCK.CreateLink( sUri, true ) ;

        // If no selection, no links are created, so use the uri as the link text (by dom, 2006-05-26)
        var aHasSelection = ( aLinks.length > 0 ) ;
        if ( !aHasSelection )
        {
                sInnerHtml = sUri;

                // Built a better text for empty links.
                switch ( GetE('cmbLinkType').value )
                {
                        // anchor: use old behavior --> return true
                        case 'anchor':
                                sInnerHtml = sInnerHtml.replace( /^#/, '' ) ;
                                break ;

                        // url: try to get path
                        case 'url':
                                var oLinkPathRegEx = new RegExp("//?([^?\"']+)([?].*)?$") ;
                                var asLinkPath = oLinkPathRegEx.exec( sUri ) ;
                                if (asLinkPath != null)
                                        sInnerHtml = asLinkPath[1];  // use matched path
                                break ;

                        // mailto: try to get email address
                        case 'email':
                                sInnerHtml = GetE('txtEMailAddress').value ;
                                break ;
                }

                // Create a new (empty) anchor.
                aLinks = [ oEditor.FCK.InsertElement( 'a' ) ] ;
        }

        for ( var i = 0 ; i < aLinks.length ; i++ )
        {
                oLink = aLinks[i] ;

                if ( aHasSelection )
                        sInnerHtml = oLink.innerHTML ;          // Save the innerHTML (IE changes it if it is like an URL).

                oLink.href = sUri ;
                SetAttribute( oLink, '_fcksavedurl', sUri ) ;

                var onclick;
                // Accessible popups
                if( GetE('cmbTarget').value == 'popup' )
                {
                        onclick = BuildOnClickPopup() ;
                        // Encode the attribute
                        onclick = encodeURIComponent( " onclick=\"" + onclick + "\"" )  ;
                        SetAttribute( oLink, 'onclick_fckprotectedatt', onclick ) ;
                }
                else
                {
                        // Check if the previous onclick was for a popup:
                        // In that case remove the onclick handler.
                        onclick = oLink.getAttribute( 'onclick_fckprotectedatt' ) ;
                        if ( onclick )
                        {
                                // Decode the protected string
                                onclick = decodeURIComponent( onclick ) ;

                                if( oRegex.OnClickPopup.test( onclick ) )
                                        SetAttribute( oLink, 'onclick_fckprotectedatt', '' ) ;
                        }
                }

                oLink.innerHTML = sInnerHtml ;          // Set (or restore) the innerHTML

                // Target
                if( GetE('cmbTarget').value != 'popup' )
                        SetAttribute( oLink, 'target', GetE('txtTargetFrame').value ) ;
                else
                        SetAttribute( oLink, 'target', null ) ;

                // Let's set the "id" only for the first link to avoid duplication.
                if ( i == 0 )
                        SetAttribute( oLink, 'id', GetE('txtAttId').value ) ;

                // Advances Attributes
                SetAttribute( oLink, 'name'             , GetE('txtAttName').value ) ;
                SetAttribute( oLink, 'dir'              , GetE('cmbAttLangDir').value ) ;
                SetAttribute( oLink, 'lang'             , GetE('txtAttLangCode').value ) ;
                SetAttribute( oLink, 'accesskey', GetE('txtAttAccessKey').value ) ;
                SetAttribute( oLink, 'tabindex' , ( GetE('txtAttTabIndex').value > 0 ? GetE('txtAttTabIndex').value : null ) ) ;
                SetAttribute( oLink, 'title'    , GetE('txtAttTitle').value ) ;
                SetAttribute( oLink, 'type'             , GetE('txtAttContentType').value ) ;
                SetAttribute( oLink, 'charset'  , GetE('txtAttCharSet').value ) ;

                if ( oEditor.FCKBrowserInfo.IsIE )
                {
                        var sClass = GetE('txtAttClasses').value ;
                        // If it's also an anchor add an internal class
                        if ( GetE('txtAttName').value.length != 0 )
                                sClass += ' FCK__AnchorC' ;
                        SetAttribute( oLink, 'className', sClass ) ;

                        oLink.style.cssText = GetE('txtAttStyle').value ;
                }
                else
                {
                        SetAttribute( oLink, 'class', GetE('txtAttClasses').value ) ;
                        SetAttribute( oLink, 'style', GetE('txtAttStyle').value ) ;
                }
        }

        // Select the (first) link.
        oEditor.FCKSelection.SelectNode( aLinks[0] );

        return true ;
}

function BrowseServer()
{
        OpenFileBrowser( FCKConfig.LinkBrowserURL, FCKConfig.LinkBrowserWindowWidth, FCKConfig.LinkBrowserWindowHeight ) ;
}

function SetUrl( url )
{
        GetE('txtUrl').value = url ;
        OnUrlChange() ;
        dialog.SetSelectedTab( 'Info' ) ;
}

function OnUploadCompleted( errorNumber, fileUrl, fileName, customMsg )
{
        // Remove animation
        window.parent.Throbber.Hide() ;
        GetE( 'divUpload' ).style.display  = '' ;

        switch ( errorNumber )
        {
                case 0 :        // No errors
                        alert( 'Your file has been successfully uploaded' ) ;
                        break ;
                case 1 :        // Custom error
                        alert( customMsg ) ;
                        return ;
                case 101 :      // Custom warning
                        alert( customMsg ) ;
                        break ;
                case 201 :
                        alert( 'A file with the same name is already available. The uploaded file has been renamed to "' + fileName + '"' ) ;
                        break ;
                case 202 :
                        alert( 'Invalid file type' ) ;
                        return ;
                case 203 :
                        alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
                        return ;
                case 500 :
                        alert( 'The connector is disabled' ) ;
                        break ;
                default :
                        alert( 'Error on file upload. Error number: ' + errorNumber ) ;
                        return ;
        }

        SetUrl( fileUrl ) ;
        GetE('frmUpload').reset() ;
}

var oUploadAllowedExtRegex      = new RegExp( FCKConfig.LinkUploadAllowedExtensions, 'i' ) ;
var oUploadDeniedExtRegex       = new RegExp( FCKConfig.LinkUploadDeniedExtensions, 'i' ) ;

function CheckUpload()
{
        var sFile = GetE('txtUploadFile').value ;

        if ( sFile.length == 0 )
        {
                alert( 'Please select a file to upload' ) ;
                return false ;
        }

        if ( ( FCKConfig.LinkUploadAllowedExtensions.length > 0 && !oUploadAllowedExtRegex.test( sFile ) ) ||
                ( FCKConfig.LinkUploadDeniedExtensions.length > 0 && oUploadDeniedExtRegex.test( sFile ) ) )
        {
                OnUploadCompleted( 202 ) ;
                return false ;
        }

        // Show animation
        window.parent.Throbber.Show( 100 ) ;
        GetE( 'divUpload' ).style.display  = 'none' ;

        return true ;
}

function SetDefaultTarget()
{
        var target = FCKConfig.DefaultLinkTarget || '' ;

        if ( oLink || target.length == 0 )
                return ;

        switch ( target )
        {
                case '_blank' :
                case '_self' :
                case '_parent' :
                case '_top' :
                        GetE('cmbTarget').value = target ;
                        break ;
                default :
                        GetE('cmbTarget').value = 'frame' ;
                        break ;
        }

        GetE('txtTargetFrame').value = target ;
}