<!--
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; 
// -->