function setLnb(menuId, lnb) {
	
	// ¸Þ´º¾ÆÀ̵𰡠¾øÀ¸¸é exception ¹ß»ý
	if (menuId == "") 
		menuId = "asdf";
	
	$("." + lnb + " ." + menuId).addClass("selectedMenu");
	
	selectedMenu();
	
	$("." + lnb + " ul")
	.each(function(){
		$(this).children().mouseenter(function(){
			imageOff($("." + lnb + " li:not(.selectedMenu) img"));
			imageOn($(this).find("img:eq(0)"));
		});
	})
	.mouseleave(function(){
		selectedMenu();
	});
	
	function selectedMenu() {
		$("." + lnb + " ul").each(function(){
			imageOff($(this).find("img"));
			$(this).find(".selectedMenu").each(function(){
				imageOn($(this).find("img"));
			});
		});
	}
	
	function imageOn($obj) {
		$($obj).each(function(){
			$(this).attr("src", $(this).attr("src").replace("_off","_on"));
		});
	}

	function imageOff($obj) {
		$($obj).each(function(){
			$(this).attr("src", $(this).attr("src").replace("_on","_off"));
		});
	}
}