var obj = null;
var timeout = 500;
function hideMenu() {
	if (obj) {
		obj.find('ul').hide();
		obj.find('ul').css("visibility","hidden");
		obj = null;
		}
	}

function showMenu() {
	if (obj) {
		obj.find('ul').show();
		obj.find('ul').css("visibility","visible");
		obj = null;
		}
	}

$(document).ready(function() {
	$('#nav-main li ul').hide();
	// apply bgiframe if available to fix IE6 Select Overlap Bug
	if ($.fn.bgiframe){
		$('#nav-main li ul').bgiframe();
		}
	$('#nav-main > li').hover(function() {
		hideMenu();
		obj = $(this);
		showMenu();
	}, function() {
		obj = $(this);
		setTimeout("hideMenu()",timeout);
		});
	});