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

function jsddm_open()
{  jsddm_canceltimer();
   jsddm_close();
   ddmenuitem = $(this).find('ul').css('visibility', 'visible');
   $(this).find('.sub').css('background', 'url(/images/sub-arrow-on.png) right no-repeat').css('color', '#7a0343');
}

function jsddm_close()
{  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
   $('.sub').css('background', 'url(/images/sub-arrow.png) no-repeat right').css('color', '#fff');
   $('.onstate .sub').css('color', '#498bc4');
}

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

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

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

document.onclick = jsddm_close;