function switchStyle(index)
{
	if (styblocks[index].className == "styblock") styblocks[index].className = "styblock-hidden";
	else styblocks[index].className = "styblock";
	for(var i=0; i<styblocks.length; i++) 
		if (i != index) styblocks[i].className = "styblock-hidden";
	return false;
}

function switchLabel(index)
{
	if (labblocks[index].className == "labblock") labblocks[index].className = "labblock-hidden";
	else labblocks[index].className = "labblock";
	for(var i=0; i<labblocks.length; i++) 
		if (i != index) labblocks[i].className = "labblock-hidden";
	return false;
}