function openWin(x,y,w,h,options) {
	rex = /[^ ]*\.(gif|jpg|bmp|png)$/i;
	if (x.match(rex)) {
		h += 30;
		w += 22;
	}
	if (!options) {
	  options = "status=no,scrollbars=no,resize=no,menubar=no";
  }
	aWindow=window.open(x,y,"toolbar=no,width="+w+",height="+h+","+options);
}

<!-- ImageReady Preload Script (layout.psd) -->

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];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		home003 = newImage("/menuimages/home-03.gif");
		shop005 = newImage("/menuimages/shop-05.gif");
		groessen001 = newImage("/menuimages/ringgroessen-01.gif.gif");
		lexikon001 = newImage("/menuimages/lexikon-01.gif");
		anfertigungen007 = newImage("/menuimages/anfertigungen-02.gif");
		umarbeitungen009 = newImage("/menuimages/umarbeitungen-09.gif");
		kontakt011 = newImage("/menuimages/kontakt-11.gif");
		impressum013 = newImage("/menuimages/impressum-13.gif");
		links015 = newImage("/menuimages/links-15.gif");
		preloadFlag = true;
	}
}

<!-- End Preload Script -->