function openWin(URL,winName,features) { window.open(URL,winName,features); }

function weiter(URL) { location.href = URL; }

function showMenu(ebene) {
	if (document.getElementById(ebene).style.visibility == "hidden") {
	    document.getElementById(ebene).style.visibility = "visible";
	}
	else {
	    document.getElementById(ebene).style.visibility = "hidden";
	}
}

function closeMenu(ebene) {
	if (document.getElementById(ebene).style.visibility == "visible") {
	    document.getElementById(ebene).style.visibility = "hidden";
	}
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}