/** jQuery Progress Bar plugin
* Version 1.1.0 (06/20/2008)
* @requires jQuery v1.2.1 or later
*
* Copyright (c) 2008 Gary Teo
* http://t.wits.sg */
(function($) {
$.extend({
progressBar: new function() {
this.defaults = {
increment	: 2,
speed		: 15,
showText	: true,
width		: 120,
boxImage	: MainURL+'templates/default/images/progressbar.gif',
barImage	: MainURL+'templates/default/images/progressbg_green.gif',
height		: 12
};			
this.construct = function(arg1, arg2) {
var argpercentage	= null;
var argconfig		= null;

if (arg1 != null) {
if (!isNaN(arg1)) {
argpercentage 	= arg1;
if (arg2 != null) {
argconfig	= arg2; }
} else {
argconfig		= arg1; 
}
}
return this.each(function(child) {
var pb		= this;
if (argpercentage != null && this.bar != null && this.config != null) {
this.config.tpercentage	= argpercentage;
if (argconfig != null)
pb.config			= $.extend(this.config, argconfig);
} else {
var $this				= $(this);
var config				= $.extend({}, $.progressBar.defaults, argconfig);
var percentage			= argpercentage;
if (argpercentage == null)
var percentage		= $this.html().replace("%","");	// parsed percentage						
$this.html("");
var bar					= document.createElement('img');
var text				= document.createElement('span');
bar.id 					= this.id + "_percentImage";
text.id 				= this.id + "_percentText";
bar.src					= config.boxImage;
bar.width				= config.width;
var $bar				= $(bar);
var $text				= $(text);
this.bar				= $bar;
this.ntext				= $text;
this.config				= config;
this.config.cpercentage	= 0;
this.config.tpercentage	= percentage;
$bar.css("width", config.width + "px");
$bar.css("height", config.height + "px");
$bar.css("background-image", "url(" + config.barImage + ")");
$bar.css("padding", "0");
$bar.css("margin", "0");
$this.append($bar);
$this.append($text);
bar.alt				= this.tpercentage;
bar.title			= this.tpercentage;
}					
var t = setInterval(function() {
var config		= pb.config;
var cpercentage = parseInt(config.cpercentage);
var tpercentage = parseInt(config.tpercentage);
var increment	= parseInt(config.increment);
var bar			= pb.bar;
var text		= pb.ntext;
var pixels		= config.width / 100;			// Define how many pixels go into 1%
bar.css("background-position", (((config.width * -1)) + (cpercentage * pixels)) + 'px 50%');
if (config.showText)
text.html(" " + Math.round(cpercentage) + "%");
if (cpercentage > tpercentage) {
if (cpercentage - increment  < tpercentage) {
pb.config.cpercentage = 0 + tpercentage
} else {
pb.config.cpercentage -= increment;
}
}
else if (pb.config.cpercentage < pb.config.tpercentage) {
if (cpercentage + increment  > tpercentage) {
pb.config.cpercentage = tpercentage
} else {
pb.config.cpercentage += increment;
}
} 
else {
clearInterval(t);
}
}, pb.config.speed); 
});
};
}
});
$.fn.extend({
progressBar: $.progressBar.construct
});
})(jQuery);