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/*
 * jQuery UI Effects Explode 1.8.5
 *
 * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Effects/Explode
 *
 * Depends:
 *      jquery.effects.core.js
 */
(function( $, undefined ) {

$.effects.explode = function(o) {

        return this.queue(function() {

        var rows = o.options.pieces ? Math.round(Math.sqrt(o.options.pieces)) : 3;
        var cells = o.options.pieces ? Math.round(Math.sqrt(o.options.pieces)) : 3;

        o.options.mode = o.options.mode == 'toggle' ? ($(this).is(':visible') ? 'hide' : 'show') : o.options.mode;
        var el = $(this).show().css('visibility', 'hidden');
        var offset = el.offset();

        //Substract the margins - not fixing the problem yet.
        offset.top -= parseInt(el.css("marginTop"),10) || 0;
        offset.left -= parseInt(el.css("marginLeft"),10) || 0;

        var width = el.outerWidth(true);
        var height = el.outerHeight(true);

        for(var i=0;i<rows;i++) { // =
                for(var j=0;j<cells;j++) { // ||
                        el
                                .clone()
                                .appendTo('body')
                                .wrap('<div></div>')
                                .css({
                                        position: 'absolute',
                                        visibility: 'visible',
                                        left: -j*(width/cells),
                                        top: -i*(height/rows)
                                })
                                .parent()
                                .addClass('ui-effects-explode')
                                .css({
                                        position: 'absolute',
                                        overflow: 'hidden',
                                        width: width/cells,
                                        height: height/rows,
                                        left: offset.left + j*(width/cells) + (o.options.mode == 'show' ? (j-Math.floor(cells/2))*(width/cells) : 0),
                                        top: offset.top + i*(height/rows) + (o.options.mode == 'show' ? (i-Math.floor(rows/2))*(height/rows) : 0),
                                        opacity: o.options.mode == 'show' ? 0 : 1
                                }).animate({
                                        left: offset.left + j*(width/cells) + (o.options.mode == 'show' ? 0 : (j-Math.floor(cells/2))*(width/cells)),
                                        top: offset.top + i*(height/rows) + (o.options.mode == 'show' ? 0 : (i-Math.floor(rows/2))*(height/rows)),
                                        opacity: o.options.mode == 'show' ? 1 : 0
                                }, o.duration || 500);
                }
        }

        // Set a timeout, to call the callback approx. when the other animations have finished
        setTimeout(function() {

                o.options.mode == 'show' ? el.css({ visibility: 'visible' }) : el.css({ visibility: 'visible' }).hide();
                                if(o.callback) o.callback.apply(el[0]); // Callback
                                el.dequeue();

                                $('div.ui-effects-explode').remove();

        }, o.duration || 500);


        });

};

})(jQuery);