var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;

	function jsddm_open()
	{	jsddm_canceltimer();
		jsddm_close();
		ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');
		}

	function jsddm_close()
	{	if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
		$('#navXtra li a.menu_head').css({backgroundPosition : '0px 0px'});
		}

	function jsddm_timer()
	{	closetimer = window.setTimeout(jsddm_close, timeout);}

	function jsddm_canceltimer()
	{	if(closetimer)
		{	window.clearTimeout(closetimer);
			closetimer = null;}}

	$(document).ready(function() { 
		$('#navXtra > li').bind('mouseover', jsddm_open);
		$('#navXtra > li').bind('mouseout',  jsddm_timer);
		
		// add classes to sub-list elements for css hooks
		//$('#navXtra ul li:last-child').addClass('last');
		//$('#navXtra ul:first').addClass('first');  
		//$('#navXtra ul:last').addClass('last');
		

		// zebra-stripe all tables
		//$("table.stripes tr").mouseover(function() {$(this).addClass("over");}).mouseout(function() {$(this).removeClass("over");});
		//$("table.stripes tr:even").addClass("alt");
		
		
	});

document.onclick = jsddm_close;