$(document).ready(function(){
	$(".main a img").hover(
		function () {
			if($(this).parent().attr("class")!="active") {
				var url = $(this).attr("src");
				url = url.replace(/.png/, "_over.png");
				$(this).attr("src", url);
			}
		},
		function () {
			if($(this).parent().attr("class")!="active") {
				var url = $(this).attr("src");
				url = url.replace(/_over/, "");
				$(this).attr("src", url);
			}
		}
	);
	
	$(".lower a img").hover(
		function () {
			if($(this).parent().attr("class")!="active") {
				var url = $(this).attr("src");
				url = url.replace(/.png/, "_over.png");
				$(this).attr("src", url);
			}
		},
		function () {
			if($(this).parent().attr("class")!="active") {
				var url = $(this).attr("src");
				url = url.replace(/_over/, "");
				$(this).attr("src", url);
			}
		}
	);
	/*
	$(".hide").toggle();
	$(".collapse").toggle();
	
	
	$(".read").click(function () {
		$(this).parent().next(".hide").slideDown("slow");
		$(this).toggle();
		$(this).parent().next(".hide").next(".collapse").toggle();
	});
	
	$(".collapse").click(function () {
		$(this).toggle();
		$(this).prev(".hide").slideUp("slow");
		$(this).prev(".hide").prev().children(".read").toggle();
	});*/
	
	preload_image_object = new Image();
	preload_image_object.src = "/images/menu/logo_over.png";
	// set image url
	image_url = new Array();
	image_url[0] = "About";
	image_url[1] = "RSD";
	image_url[2] = "ESS";
	image_url[3] = "ETP";
	image_url[4] = "logo";
	
	
	var i = 0;
	for(i=0; i<=4; i++)
	{
		preload_image_object = new Image();
		preload_image_object.src = "/images/menu/"+image_url[i]+"_over.png";
	}
});