function zoom(status)
{
	if (status == 'off')
	{
		document.getElementById('zoom').style.visibility = 'hidden';
		document.getElementById('inner').style.visibility = 'hidden';
		document.getElementById('outer').style.visibility = 'hidden';
	}
	else
	{
		document.getElementById('zoom').style.visibility = 'visible';
		document.getElementById('inner').style.visibility = 'visible';
		document.getElementById('outer').style.visibility = 'visible';
	}
}