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;