$(document).ready(function()
{
	$('.credit').css({
		opacity: "0.4"
	});

	$('.credit').hover(
		function()
		{
			$(this).animate({
				backgroundPosition: "0px 0px",
				width: "155px",
				opacity: "1"
			}, 300);
		},
		function()
		{
			$(this).animate({
				backgroundPosition: "-155px 0px",
				width: "11px",
				opacity: "0.4"
			}, 300);
		}
	);	
});