var timeout = 200;
	var closetimer = 0;
	var ddmenuitem = 0;
	
	function mopen(id)
	{
		mcancelclosetime();
		if (ddmenuitem)
		{
			ddmenuitem.style.visibility = 'hidden';
		}
		ddmenuitem = document.getElementById(id);
		ddmenuitem.style.visibility = 'visible';
	}
	
	function mclose()
	{
		if (ddmenuitem)
		{
			ddmenuitem.style.visibility = 'hidden';
		}
	}
	
	function mclosetime()
	{
		closetimer = window.setTimeout(mclose, timeout);
	}
	
	function mcancelclosetime()
	{
		if (closetimer)
		{
			window.clearTimeout(closetimer);
			closetimer = null;
		}
	}
	
	document.onclick = mclose;