function tdover(elem, clr)
	{
		elem.style.backgroundColor = clr;
		elem.style.color = '#006699';
	}
	function tdout(elem, clr)
	{
		elem.style.backgroundColor = clr;
		if (clr != '#ffcc00')
			elem.style.color = '#ffcc00';
		else
			elem.style.color = '#000000';
	}