function quota(str) {
  return (str != null) ? '"' + str + '"' : '""';
}
	
document.write(
	'<IMG BORDER=0 src="http://webcam.mbtlc.it/webc.php?h=480&w=640" alt="Webcam" width="640" height="480"><br>' +
	'<ifr' + 'ame' +
	' name="mbtlc_frame_banner"' +
	' width=' + quota("640") +
	' height=' + quota("60") +
	' frameborder=' + quota("0") +
	' src=' + quota("http://ads.mbtlc.it/banner/?w=640") +
	' marginwidth="0"' +
	' marginheight="0"' +
	' vspace="0"' +
	' hspace="0"' +
	' allowtransparency="true"' +
	' scrolling="no">');
document.write('</ifr' + 'ame>');