var timeout         = 100;
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'); }
function jsddm_timer() { closetimer = window.setTimeout(jsddm_close, timeout); }
function jsddm_canceltimer() { if(closetimer) { window.clearTimeout(closetimer); closetimer = null; } }
	
$(document).ready(function()	{
	$('#topmenu > li').bind('mouseover', jsddm_open);
	$('#topmenu > li').bind('mouseout',  jsddm_timer);
});
	
document.onclick = jsddm_close;