var timeout    = 100;
var closetimer = 0;
var ddmenuitem = 0;

function jsddm_open(){  
	jsddm_canceltimer();
   	jsddm_close();
   	ddmenuitem = $(this).find('ul').css('display', 'block');
}

function jsddm_close(){  
	if(ddmenuitem) ddmenuitem.css('display', 'none');
}

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

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

$(document).ready(function(){  
	$('#menu > li').bind('mouseover', jsddm_open)
   $('#menu > li').bind('mouseout',  jsddm_timer)});

document.onclick = jsddm_close;