var IDX = {
	Init: function() {
		$("#People ul li").mouseover(IDX.ppl_over, IDX.ppl_out);
	},

	ppl_over: function() {
		var li = $(this);
		var img_url = li.attr("rev");
		$("#People ul li").removeClass("over");
		li.addClass("over");
		$("#People_Img img").attr("src", img_url);
	}

}

$(IDX.Init);