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;