$(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 );
	});

});