// Copyright 2006-2007 javascript-array.com

var timeout	= 50;
var closetimer	= 0;
var ddmenuitem	= 0;
var normal = 0;
var rollover = 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
	/*
        normal = document.getElementById("navbar_"+id+"_normal");
        rollover = document.getElementById("navbar_"+id+"_rollover");
        if (normal && rollover)
        {
          normal.style.visibility = "hidden";
          rollover.style.visibility = "visible";
        }
	*/
}
// close showed layer
function mclose()
{
  if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
  /*
  if (normal && rollover)
  {
    normal.style.visibility = 'visible';
    rollover.style.visibility = 'hidden';
  }
  */

}

// go close timer
function mclosetime()
{
    closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;