function menu(id)
	{
	var menuname = "submenu" + id;
	var menuheadername = "submenuheader" + id;
	//alert (document.getElementById(menuname).style.display);
	if (document.getElementById(menuname).style.display == 'block')
		{
		document.getElementById(menuname).style.display='none';
		document.getElementById(menuheadername).className='submenuheader';
		}
	else
		{
		document.getElementById(menuname).style.display='block';
		document.getElementById(menuheadername).className='submenuheaderup';
		}
	}