/*

 * jQuery UI Effects Explode 1.8.1

 *

 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)

 * Dual licensed under the MIT (MIT-LICENSE.txt)

 * and GPL (GPL-LICENSE.txt) licenses.

 *

 * http://docs.jquery.com/UI/Effects/Explode

 *

 * Depends:

 *	jquery.effects.core.js

 */

(function($) {

$.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);