var timeout         = 500;
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()
{    $('#boyicss > li').bind('mouseover', jsddm_open);
    $('#boyicss > li').bind('mouseout',  jsddm_timer);});

document.onclick = jsddm_close;