//set navigation rollovers
$J(document).ready(function() {

	var q=document.location.search;
	if(q){	
		q=q.substr(1);
		$J("#gtag_"+q).click();		
	}

	var navElements = $J("#menu").children("li > a");
	//console.log(navElements);
	navElements.each(function(i){
		    $J(navElements[i]).hover(
			 function() {
			  curr = $J(this).find("img").attr("src");
			  if(curr.indexOf("_on.gif")!=-1) return;
			  overlen = curr.length;
			  over = curr.substr(0, overlen-4);
			  over = over+'_on.gif';
			  $J(this).find("img").attr({ src: over});
			 },
			 function() {
			  $J(this).find("img").attr({ src: curr});
			 }
			)

			$J(navElements[i]).find("img").each(function(i) {
			  temp = this.src;
			  prelen = temp.length;
			  pre = temp.substr(0, prelen-4);
			  pre = pre+'_on.gif';
			  preload_image_object = new Image();
			  preload_image_object.src = pre;
			});
		});//end each
});