//---------------------------------------------------------------------------------------------------
//   SCRIPT NAME: dropdown.js
//   DESCRIPTION: Menu
//    ASSOCIATED: none
//        AUTHOR: sales@gonline.co.za
// CREATION DATE: 06/09/2010
//      MODIFIED:
//---------------------------------------------------------------------------------------------------

<!--start-->

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

// close showed layer
function mclose(){ if(ddmenuitem) ddmenuitem.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; 

<!--end-->