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

	function jsddm_open() {
	   jsddm_canceltimer();
	   jsddm_close();
	   ddmenuitem = $(this).find('ul').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() {
		 $('#jsddm > li').bind('mouseover', jsddm_open);
	         $('#jsddm > li').bind('mouseout',  jsddm_timer);
	 });

	 document.onclick = jsddm_close;