function ClearForm(form) {
	if (form.value == form.defaultValue)
	form.value = "";
}

function OpenWindow(url, breite, hoehe) {
	window.open(url, "Image", "width=" + breite + ", height=" + hoehe + ", status=no, menubar=no, resizable=no, scrollbars=no, toolbar=no");
}

function AendereBild(id, imgnr, galerie_dir, img_dir) {
	if (document.images) {
		if (imgnr != 0 && imgnr != '') {
				document.getElementById(id).src = galerie_dir + imgnr + '_thumb_b.jpg';
		} else {
				document.getElementById(id).src = img_dir + 'bildauswahl.jpg';
		}
	}
}