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;

	}
	}
	
	
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;

	}
	}