$(function() {
$('#LeftContent .UnderNaviQ_t').css({"height":"20px","overflow":"hidden"});
$('#LeftContent .UnderNaviQ_t').hover(function() {
				var lin = $(this).find("li")
				var length = $(lin).size()-1;
				var height = length*25 + 55;
                $(this).stop().animate({"height":height}, 300);
                },function() {
                $(this).stop().animate({"height":"20px" }, 500);
                });
});