if (document.images) {
	// Active Images
	img1off = new Image(); img1off.src = "images/usichtoff.jpg";
	img2off = new Image(); img2off.src = "images/kontaktoff.jpg";
	img3off = new Image(); img3off.src = "images/buchoff.jpg";
	img4off = new Image(); img4off.src = "images/hkunstoff.jpg";
        img5off = new Image(); img5off.src = "images/galerieoff.jpg";	
	     
	// Inactive Images
	img1on = new Image(); img1on.src = "images/usichton.jpg";
	img2on = new Image(); img2on.src = "images/kontakton.jpg";
	img3on = new Image(); img3on.src = "images/buchon.jpg";
	img4on = new Image(); img4on.src = "images/hkunston.jpg";
	img5on = new Image(); img5on.src = "images/galerieon.jpg";

	
	
}

// Function to 'activate' images.
function imgOn(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "on.src");
	//	document["holder"].src = eval(imgName + "ad.src");
	}
}

// Function to 'deactivate' images.
function imgOff(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "off.src");
	//	document["holder"].src = "images/B1.jpg";

	}
}