function swapbg0(cellName) {
	    document.getElementById(cellName).style.backgroundImage = "url('/images/menubg.png')";
	}
	function swapbg1(cellName) {
	    document.getElementById(cellName).style.backgroundImage = "url('/images/menubg-over.png')";
	}
	function swapbg2(cellName) {
	    document.getElementById(cellName).style.backgroundImage = "url('/images/menubg-gold.png')";
	}