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

function jsddm_open(){
   jsddm_canceltimer();
   jsddm_close();
   ddmenuitem = jQuery(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;
  }
}


jQuery.noConflict();

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

document.onclick = jsddm_close;