function setBoxes(fset, val)
{
	parent_em = document.getElementById(fset);
	for (bx in parent_em.childNodes)
	{
		if (parent_em.childNodes[bx].nodeName == 'LABEL')
		{
			cb = parent_em.childNodes[bx].firstChild;
			if (cb.type == 'checkbox')
			{
				cb.checked = val;
			}
		}
	}
}