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

function jsddm_open()
{  jsddm_canceltimer();
   jsddm_close();
   currItem = $(this);
   $(currItem).find('a.parent').addClass('parent-rollover');
   ddmenuitem = $(currItem).find('ul').css('display', 'block');}

function jsddm_close()
{  
	if(ddmenuitem) ddmenuitem.css('display', 'none');
	$(currItem).find('a.parent').removeClass('parent-rollover');
}

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

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

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

	document.onclick = jsddm_close;