// JavaScript Document
$(document).ready(function()  {
		(function ($) {
			$.preLoadImages = function(imageList,callback) {
				var pic = [], i, total, loaded = 0;
				if (typeof imageList != 'undefined') {
					if ($.isArray(imageList)) {
						total = imageList.length; // used later
							for (i=0; i < total; i++) {
								pic[i] = new Image();
								pic[i].onload = function() {
									loaded++; // should never hit a race condition due to JS's non-threaded nature
									if (loaded == total) {
										if ($.isFunction(callback)) {
											callback();
										}
									}
								};
								pic[i].src = imageList[i];
							}
					}
					else {
						pic[0] = new Image();
						pic[0].onload = function() {
							if ($.isFunction(callback)) {
								callback();
							}
						}
						pic[0].src = imageList;
					}
				}
				pic = undefined;
			};
		
			$.preLoadCSSImages = function(callback) {
				var pic = [], i, imageList = [], loaded = 0, total, regex = new RegExp("url\((.*)\)",'i'),spl;
				var cssSheets = document.styleSheets, path,myRules,Rule,match,txt,img,sheetIdx,ruleIdx;
				for (sheetIdx=0;sheetIdx < cssSheets.length;sheetIdx++){
					var sheet = cssSheets[sheetIdx];
					if (typeof sheet.href == 'string' && sheet.href.length > 0) {
						spl = sheet.href.split('/');spl.pop();path = spl.join('/')+'/';
					}
					else {
						path = './';
					}
					myRules = sheet.cssRules ? sheet.cssRules : sheet.rules;
					for (ruleIdx=0;ruleIdx < myRules.length;ruleIdx++) {
						Rule = myRules[ruleIdx];
						txt = Rule.cssText ? Rule.cssText : Rule.style.cssText;
						match = regex.exec(txt);
						if (match != null) {
							img = match[1].substring(1,match[1].indexOf(')',1));
							if (img.substring(0,4) == 'http') {
								imageList[imageList.length] = img;
							}
							else if ( match[1].substring(1,2) == '/') {
								var p2 = path.split('/');p2.pop();p2.pop();p2x = p2.join("/");
								imageList[imageList.length] = p2x+img;
							}
							else {
								imageList[imageList.length] = path+img;
							}
						}
					};
				};
		
				total = imageList.length; // used later
				for (i=0; i < total; i++) {
					pic[i] = new Image();
					pic[i].onload = function() {
						loaded++; // should never hit a race condition due to JS's non-threaded nature
						if (loaded == total) {
							if ($.isFunction(callback)) {
								callback();
							}
						}
					};
					pic[i].src = imageList[i];
				}
		
			};
			$.preLoadAllImages = function(imageList,callback) {
				if (typeof imageList != 'undefined') {
					if ($.isFunction(imageList)) {
						callback = imageList;
					}
					else if (!$.isArray(imageList)) {
						imageList = [imageList];
					}
				}
				$.preLoadCSSImages(function(){
					if (imageList.length > 0) {
						$.preLoadImages(imageList,function(){
							callback();
						});
					}
					else {
						callback();
					}
				});
			}
		})(jQuery);
		
		
		
					
	(function($) {

		jQuery.fn.backgroundPosition = function() {
	
			var p = $(this).css('background-position');
			if(typeof(p) === 'undefined') return $(this).css('background-position-x') + ' ' + $(this).css('background-position-y');
			else return p;
	
		};
	
	})(jQuery);
	
	
	
	$(function(){
		$('.navTop a')
			//.css( {backgroundPosition: "0px 35px"} )
			.mouseover(function(){
				$(this).stop().animate({backgroundPosition:"(0px 0px)"}, {duration:100})
			})
			.mouseout(function(){
				$(this).stop().animate({backgroundPosition:"(0px 35px)"}, {duration:100, complete:function(){
					$(this).css({backgroundPosition: "0px 35px"})
				}})
			})
	});
	
});