function mo (nButton, bOver) {
	var oImage = getDocumentImage ('I' + nButton);
	if (oImage) {
	  cSrc = oImage.src;
		var cTeil = cSrc.substr(0,cSrc.length - 5);
		var cExt = cSrc.substr (cSrc.lastIndexOf('.'));
		cSrc = cTeil + (bOver ? '1' : '0') + cExt;
		oImage.src = cSrc;
	}
}


function show (cStatus) {
	window.status = (cStatus ? cStatus : '');
	return (true);
}

function getDocumentImage (cImageName) {
	var oImg = document.images[cImageName];
	if ((oImg == null || oImg+''=='undefined') && document.layers) {
		for (var i=0; i<document.layers.length; i++) {
			oImg = document.layers[i].document.images[cImageName];
			if (oImg != null && oImg+''!='undefined') return (oImg);
		}
	}
	return (oImg);
}