var menutimeout    = 500;
var closetimer = 0;
var ddmenuitem = 0;
var turnedIn = 0;

function jsddm_open()
{  	
   
   jsddm_canceltimer();
   jsddm_close();
   ddmenuitem = $(this).find('ul');
   
   
   if(!turnedIn || turnedIn != $(this).attr('id'))
	{		
		ddmenuitem.fadeIn(menutimeout);
		turnedIn = $(this).attr('id');
	}
		
    turnin( ddmenuitem );
}

function jsddm_close()
{  	
	if(ddmenuitem) 
	{			
		turnout( ddmenuitem );
	}
}

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

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

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

document.onclick = jsddm_close;


function turnin( el )
{
	el.css('visibility', 'visible');
}

function turnout( el )
{
	el.css('visibility', 'hidden');
}