function visi_menu(nr,status) {

	if (document.layers)
	{
		
		document.over_cia.style.visibility = 'hide';
		document.geven.style.visibility = 'hide';
		document.nalaten.style.visibility = 'hide';
		document.projecten.style.visibility = 'hide';
		document.evenementen.style.visibility = 'hide';
		document.missies.style.visibility = 'hide';
		document.ycia.style.visibility = 'hide';
		document.over_israel.style.visibility = 'hide';
		document.nieuws.style.visibility = 'hide';
		
		vista = (status == 'hide') ? 'hide'		: 'show'
		document.layers[nr].visibility = vista;
	}
	else if (document.all)
	{
		
		document.all.over_cia.style.visibility = 'hidden';
		document.all.geven.style.visibility = 'hidden';
		document.all.nalaten.style.visibility = 'hidden';
		document.all.projecten.style.visibility = 'hidden';
		document.all.evenementen.style.visibility = 'hidden';
		document.all.missies.style.visibility = 'hidden';
		document.all.ycia.style.visibility = 'hidden';
		document.all.over_israel.style.visibility = 'hidden';
		document.all.nieuws.style.visibility = 'hidden';
		
		vista = (status == 'hide') ? 'hidden'	: 'visible';
		document.all[nr].style.visibility = vista;
	}

	else if (document.getElementById)
	{
		
		document.getElementById('over_cia').style.visibility = 'hidden';
		document.getElementById('geven').style.visibility = 'hidden';
		document.getElementById('nalaten').style.visibility = 'hidden';
		document.getElementById('projecten').style.visibility = 'hidden';
		document.getElementById('evenementen').style.visibility = 'hidden';
		document.getElementById('missies').style.visibility = 'hidden';
		document.getElementById('ycia').style.visibility = 'hidden';
		document.getElementById('over_israel').style.visibility = 'hidden';
		document.getElementById('nieuws').style.visibility = 'hidden';
		
		vista = (status == 'hide') ? 'hidden'	: 'visible';
		document.getElementById(nr).style.visibility = vista;

	}

}

function product(nr,status) {

	if (document.layers)
	{
		
		vista = (status == 'hide') ? 'none'		: 'block'
		document.layers[nr].display = vista;
	}
	else if (document.all)
	{
		
		vista = (status == 'hide') ? 'none'	: 'block';
		document.all[nr].style.display = vista;
	}

	else if (document.getElementById)
	{
		
		vista = (status == 'hide') ? 'none'	: 'block';
		document.getElementById(nr).style.display = vista;

	}
	}