function setupShimmers(selector) {
    $(selector)
	    .css({ backgroundPosition: "0 -185px" })
	    .mouseover(function () {
	        $(this).stop().animate(
			    { backgroundPosition: "(0 185px)" },
			    600,
			    function () {
			        $(this).css({ backgroundPosition: "0 -185px" });
			    })
	    })
}