var ActiveMenu='';
var ActiveParent='';
var timer;
function showMenu(menu, parent)
{
	clearTimeout(timer);
	hideMenu();
	if (parent != '')
	{
	parent.className = 'h1menu_a'
	document.getElementById(menu).style.visibility='visible';
	ActiveMenu = menu
	ActiveParent = parent
	}
	else 
	{
	document.getElementById(menu).style.visibility='visible';
	ActiveParent.className = 'h1menu_a'
	ActiveMenu = menu;
	}
}

function hideMenu()
{

	if (ActiveMenu != '')
	{document.getElementById(ActiveMenu).style.visibility='hidden';
	ActiveMenu=''
	}
	if (ActiveParent != '')
	{
	ActiveParent.className = 'h1menu'
	}
}