$(document).ready(function() {

		//Set css in Firefox (Required to use the backgroundPosition js)
		$("div.promo ul li a").css({backgroundPosition: "2px 214px"});

		//Animate the shutter
		$("div.promo ul li a").hover(function(){
		      $(this).stop().animate({backgroundPosition: "(2px 136px)"}, 500 );
		    }, function() {
		      $(this).stop().animate({backgroundPosition: "(2px 214px)"}, 500 );
		});
	 });