//ALL Load
$(function(){
	RollOverSet();
});

//RollOver
function RollOverSet(){
	RollOver(".menu_list");
	RollOver(".btn");
}

function RollOver(target){
	$target = $(target);
	$("img", $target).each(function(){
		$(this).mouseover(function(){
			this.setAttribute("src", this.getAttribute("src").replace(".jpg", "_on.jpg"));
        })
		$(this).mouseout(function(){
			this.setAttribute("src", this.getAttribute("src").replace("_on.jpg", ".jpg"));
        })
		$(".stay").unbind();
	});
}