// drop down menuutje

	function visi(nr,status) {
	
		if (document.layers)
		{
			
			vista = (status == 'hide') ? 'hide'		: 'show'
			document.layers[nr].visibility = vista;
		}
		else if (document.all)
		{
			
			vista = (status == 'hide') ? 'hidden'	: 'visible';
			document.all[nr].style.visibility = vista;
		}
	
		else if (document.getElementById)
		{
			
			vista = (status == 'hide') ? 'hidden'	: 'visible';
			document.getElementById(nr).style.visibility = vista;
	
		}
		}