var timeout=500;
var closetimer= 0;
var ddmenuitem= 0;
var ddtopmenuitem = 0;




// open hidden layer
function mopen(id)
{
	// cancel close timer
	mcancelclosetime();
	// close old layer
	if(ddmenuitem) {
		ddmenuitem.style.visibility = 'hidden';
	}
	if(ddtopmenuitem) {
		//ddtopmenuitem.className = 'L2';
		resetAll();
	}
	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

	ddtopmenuitem = document.getElementById('top'+id);
	ddtopmenuitem.className = 'L2_Hover';
}

// close showed layer
function mclose()
{
	if(ddmenuitem) {
	  ddmenuitem.style.visibility = 'hidden';
	}

	if(ddtopmenuitem) {
		//ddtopmenuitem.className = 'L2';
		resetAll();
	}


}

// 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;