$(function(){
	$("#nav td.list").hover(function(){
		var ul = $(this).children("div");   
		var maxleft = (parseInt(jQuery("body").css("width"))/2)+400-(parseInt(ul.outerWidth()));
		
		var arrowleft = (parseInt($(this).outerWidth())/2)-8;
		var arrow = $(this).children("img");
		arrow.css("margin-left", arrowleft + "px");
		
		if (ul.is(":animated")) {
			ul.stop()
			ul.css("height", "auto");
			ul.slideDown("normal");
			if (ul.offset().left > maxleft) {
				ul.css("left", maxleft);
			}
		} else {
			ul.css("display", "none");
			ul.slideDown("normal");
			if (ul.offset().left > maxleft) {
				ul.css("left", maxleft);
			}
		}
	},
	function(){
		var ul = $(this).children("div"); 
			
		if(ul.is(":animated")){
			ul.stop()
			.css("height", "auto")
			.slideUp("fast");
		}
		else{
			ul.slideUp("fast");
		}
	});		
});