if (document.images) {
	
		home = new Image();
		home.src = "images/nav_home.gif";
		home_on = new Image();
		home_on.src = "images/nav_home_on.gif";
		
		about = new Image();
		about.src = "images/nav_about.gif";
		about_on = new Image();
		about_on.src = "images/nav_about_on.gif";
		
		services = new Image();
		services.src = "images/nav_services.gif";
		services_on = new Image();
		services_on.src = "images/nav_services_on.gif";
		
		products = new Image();
		products.src = "images/nav_products.gif";
		products_on = new Image();
		products_on.src = "images/nav_products_on.gif";
		
		contact = new Image();
		contact.src = "images/nav_contact.gif";
		contact_on = new Image();
		contact_on.src = "images/nav_contact_on.gif";
		
		clientlogin = new Image();
		clientlogin.src = "images/nav_clientlogin.gif";
		clientlogin_on = new Image();
		clientlogin_on.src = "images/nav_clientlogin_on.gif";
				
	}
	
	function swap(imgName,objName) {
		if (document.images) {
			document[objName].src = eval(imgName + ".src");
		}
	}
	
	function popup(url,name,w,h) {
		popupWin = eval('window.open(url,name,"width='+w+',height='+h+',left=10,top=10,scrollbars=no,resizable=no")');
	}