var timeout         = 300;
var closetimer	    = 0;
var ddmenuitem      = 0;
var ddmenuparent      = 0;

// open hidden layer
function mopen(idparent,idchild)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer	
	if(ddmenuitem) mclose();	

	// get new layer and show it
	ddmenuparent = document.getElementById(idparent);
	ddmenuparent.className = "active";
	ddmenuitem = document.getElementById(idchild);
	ddmenuitem.style.visibility = 'visible';
	ddmenuparent.style.color = '#F37033';
	ddmenuparent.style.textDecoration = 'underline';
}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	if(ddmenuparent) ddmenuparent.className = "";
	if(ddmenuparent) ddmenuparent.style.color = '#FFFFFF';		
	if(ddmenuparent) ddmenuparent.style.textDecoration = 'none';


}

// 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;