/*
 * jQuery Animate To Class
 * Copyright 2008 Igor Frias Vieira
 * http://igorvieira.com/blog/animate-to-class/
 *
 * Released under the MIT and GPL licenses.
 */

(function($)
{
	$.fn.extend({
		animateToClass : function(to, duration, easing, callback)
		{
			if(!to){ return this; }
			
			styles = selectStyle(to);
			
			if(!styles) return this;
			
			return this.animate(styles, duration, easing, callback);
		}
	});
	
	function selectStyle(sel)
	{
		var attrClass;
		
		if(sel.substr(0,1) != "." && sel.substr(0,1) != "#")
		{
			sel = "." + sel;
		}
		if($.browser.msie && (/^#[A-Za-z0-9_-]+.[A-Za-z0-9_-]+$/.test(sel))){
			sel = sel.substr(sel.indexOf(".")) + sel.substr(0, sel.indexOf("."));
		}
		$(document.styleSheets).each(function(i,v)
		{
			
			if(attrClassTest = selectAttr(sel, v))
			{
				attrClass = attrClassTest;
			}
		});
		
		
		if(!attrClass)
		{
			attrClass = Array();
		}
		
		objStyle = {}
		
		if(attrClass == "")
		{
			return false;
		}
		
		if(attrClass.match(";"))
		{
			attrClass = attrClass.split(";");
		}
		else
		{
			attrClass = [attrClass];
		}
		
		$(attrClass).each(function(i,v){
			if(v != ""){
				v = v.split(":");
				v[0] = toCamelCase(v[0]);
				
				objStyle[v[0]] = $.trim(v[1]);
			}
		});
		return objStyle;
	}
	
	function selectAttr(sel, v)
	{
		var attrClass = false;	
			
		if($.browser.msie)
		{
			
			if(v.rules.length > 0)
			{
				$(v.rules).each(function(i2,v2){
					if(sel == v2.selectorText)
					{
						attrClass = v2.style.cssText;
					}
				});
			}
			else if(v.imports.length > 0)
			{
				$(v.imports).each(function(i2,v2){
										   
					if(sel == v2.selectorText)
					{
						attrClass = v2.style.cssText;
					}
					else if(v2 == "[object]" || v2 == "[Object CSSStyleSheet]" || v2 == "[object CSSImportRule]")
					{
						return selectAttr(sel, v2);
					}
				});
			}
		}
		else
		{
			$(v.cssRules).each(function(i2,v2){
				if(sel == v2.selectorText)
				{
					attrClass = v2.style.cssText;
				}
				else if(v2 == "[object CSSImportRule]")
				{
					return selectAttr(sel, v2.styleSheet);
				}
			});
		}
		
		return attrClass;
	}
	
	function toCamelCase(str)
	{
		str = $.trim(str);
		str = str.replace(/-/g, " ");
		str = str.toLowerCase();
		
		strArr = str.split(" ");
		
		var nStr = "";
		$(strArr).each(function(i,v){
			if(i == 0){
				nStr += v;
			}else{
				/*
				v = v.split("");
				v[0] = v[0].toUpperCase();
				nStr += v.join();
				*/
				
				//There was a bug in older version, this correction was sugested by Simon Shepard.
				nStr += v.substr(0,1).toUpperCase();
				nStr += v.substr(1,v.length);
			}
		});
			
		return nStr;
	}
})(jQuery);


/**
 * @author Alexander Farkas
 * v. 1.22
 */


(function($) {
	if(!document.defaultView || !document.defaultView.getComputedStyle){ // IE6-IE8
		var oldCurCSS = $.curCSS;
		$.curCSS = function(elem, name, force){
			if(name === 'background-position'){
				name = 'backgroundPosition';
			}
			if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
				return oldCurCSS.apply(this, arguments);
			}
			var style = elem.style;
			if ( !force && style && style[ name ] ){
				return style[ name ];
			}
			//return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);
			return elem.currentStyle[ 'backgroundPositionX' ] +' '+ elem.currentStyle[ 'backgroundPositionY' ];
		};
	}
	
	var oldAnim = $.fn.animate;
	$.fn.animate = function(prop){
		if('background-position' in prop){
			prop.backgroundPosition = prop['background-position'];
			delete prop['background-position'];
		}
		if('backgroundPosition' in prop){
			prop.backgroundPosition = '('+ prop.backgroundPosition;
		}
		return oldAnim.apply(this, arguments);
	};
	
	function toArray(strg){
		strg = strg.replace(/left|top/g,'0px');
		strg = strg.replace(/right|bottom/g,'100%');
		strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
		var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
		return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
	}
	
	$.fx.step. backgroundPosition = function(fx) {
		if (!fx.bgPosReady) {
			
			var start = $.curCSS(fx.elem,'backgroundPosition');
			if(!start){//FF2 no inline-style fallback
				start = '0px 0px';
			}
			
			start = toArray(start);
			fx.start = [start[0],start[2]];
			var end = toArray(fx.end);
			fx.end = [end[0],end[2]];
			
			fx.unit = [end[1],end[3]];
			fx.bgPosReady = true;
		}
		//return;
		var nowPosX = [];
		nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
		nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];           
		fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];

	};
})(jQuery);