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.display = 'none'; 	}

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.display = 'block';
	
}
// close showed layer
function mclose()
{
	if(ddmenuitem) { ddmenuitem.style.display = 'none';}
		
}

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

if (tid)
{
document.getElementById(tid).className=tclass;
}
}

// cancel close timer
function mcancelclosetime(tid)
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
	
	if (tid)
	{
		if (!(/MSIE 6/i.test(navigator.userAgent)) && !(/MSIE 7/i.test(navigator.userAgent)))
						  {
		dtid=document.getElementById(tid);
		dtid.className='selected';
						  }
		//alert(dtid.innerHTML);
	}

	
}

// close layer when click-out