var hiLight=new Array();
	preLoad("/images/header_nav/", "home_over.gif", "home_off.gif", "services_over.gif", "services_off.gif", "web_eval_off.gif", "web_eval_over.gif", "why_audit_off.gif", "why_audit_over.gif", "resources_over.gif", "resources_off.gif", "about_over.gif", "about_off.gif", "contact_off.gif", "contact_over.gif");

	function preLoad(){
		curLen = hiLight.length;
		for (i=0;i<preLoad.arguments.length-1;i++){
			hiLight[i + curLen]=new Image();
			hiLight[i + curLen].src = preLoad.arguments[0] + preLoad.arguments[i+1];
		}
	}

	function whichImage(imgname){
		for (var i = 0; i < hiLight.length; i++){
			if (hiLight[i].src.indexOf(imgname) != -1){
				return hiLight[i].src;
			}
		}
		return false;
	}

	function rollIn(image, imgname){
		if (document.images){
			document[image].src=whichImage(imgname);
		}
	}