var unfolded	= false;
var busy		= false;

function togglemenu(menuItemID)
{
	if (busy)
	{
		return
	}
	else
	{
		busy = true;	
	}
	
	if (unfolded)
	{
		var subelements = unfolded.getElementsByTagName("A").length;
		
		//fold(unfolded, subelements);
	}
	
	var menuitem = document.getElementById(menuItemID);
	var subelements = menuitem.getElementsByTagName("A").length;

	if (menuitem.offsetHeight == ( subelements * 18) )
	{
		fold(menuitem, subelements);
	}
	else if ( menuitem.offsetHeight == 18 )
	{
		unfolded = menuitem;
		unfold(menuitem, subelements);
	}
}

function unfold(menuitem, subelements)
{
	if ( menuitem.offsetHeight < (subelements * 18) )
	{
		menuitem.style.height = menuitem.offsetHeight + 3 + "px";
		setTimeout(function(){unfold(menuitem, subelements)}, 40);
	}
	else
	{
		busy		= false;
	}
}


function fold(menuitem, subelements)
{
	if ( menuitem.offsetHeight > 18 )
	{
		menuitem.style.height = menuitem.offsetHeight - 3 + "px";
		setTimeout(function(){fold(menuitem, subelements)}, 40);
	}
	else
	{
		busy = false;
	}
	


}