var L3_timeout = 0;
var L3_closetimer = 0;
var L3_ddmenuitem = 0;

function L3_open()
{  L3_canceltimer();
   L3_close();
   L3_ddmenuitem = $(this).find('ul').css('visibility', 'visible');}

function L3_close()
{  if(L3_ddmenuitem) L3_ddmenuitem.css('visibility', 'hidden');}

function L3_timer()
{  L3_closetimer = window.setTimeout(L3_close, L3_timeout);}

function L3_canceltimer()
{  if(L3_closetimer)
   {  window.clearTimeout(L3_closetimer);
      L3_closetimer = null;}}

$(document).ready(function()
{  $('#L3_left > li').bind('mouseover', L3_open)
   $('#L3_left > li').bind('mouseout',  L3_timer)});

document.onclick = L3_close;