$(document).ready(function(){
						   
	$("div#glassb a").hover(
		function(){
			$("div#glassb a.enter").css("background-position", "left bottom");								 
		},
		function(){
			$("div#glassb a.enter").css("background-position", "left top");	
		}
	);	
	
	$("div#reliefb a").hover(
		function(){
			$("div#reliefb a.enter").css("background-position", "left bottom");								 
		},
		function(){
			$("div#reliefb a.enter").css("background-position", "left top");	
		}
	);	
	
	$("div#relayb a").hover(
		function(){
			$("div#relayb a.enter").css("background-position", "left bottom");								 
		},
		function(){
			$("div#relayb a.enter").css("background-position", "left top");	
		}
	);	
	
});