var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;
var sclosetimer	= 0;
var sdmenuitem	= 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';

}
function smopen(id)
{	
	// cancel close timer
	smcancelclosetime();

	// close old layer
	if(sdmenuitem) sdmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	sdmenuitem = document.getElementById(id);
	sdmenuitem.style.visibility = 'visible';

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

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}
function smclosetime()
{
	sclosetimer = window.setTimeout(smclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}
function smcancelclosetime()
{
	if(sclosetimer)
	{
		window.clearTimeout(sclosetimer);
		sclosetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;

function goToLink(pSelect)
{
	if (pSelect.options[pSelect.selectedIndex].value.substring(0,4) == "http")
	{
		window.open(pSelect.options[pSelect.selectedIndex].value,'_blank')
	} else {
		window.open(pSelect.options[pSelect.selectedIndex].value,'_top')
	}
}