if (document.images){
	img1 = new Image;
	img1.src = "images/media-head.gif";	
	img2 = new Image;
	img2.src = "images/down.gif";	
	img3 = new Image;
	img3.src = "images/up.gif";	
	img4 = new Image;
	img4.src = "images/photo-ctr.jpg";	
	img5 = new Image;
	img5.src = "images/photo-head.gif";	
	img6 = new Image;
	img6.src = "images/pratt.gif";	
	img7 = new Image;
	img7.src = "images/spacer.gif";	
	img8 = new Image;
	img8.src = "images/photo-ctr2.jpg";	
	b0b = new Image;
	b0b.src = "images/b0b.gif";
	b1b = new Image;
	b1b.src = "images/b1b.gif";
	b2b = new Image;
	b2b.src = "images/b2b.gif";
	b3b = new Image;
	b3b.src = "images/b3b.gif";
	p0b = new Image;
	p0b.src = "images/p0b.gif";
	p1b = new Image;
	p1b.src = "images/p1b.gif";
	p2b = new Image;
	p2b.src = "images/p2b.gif";
	h0b = new Image;
	h0b.src = "images/h0b.gif";
	b0a = new Image;
	b0a.src = "images/b0a.gif";
	b1a = new Image;
	b1a.src = "images/b1a.gif";
	b2a = new Image;
	b2a.src = "images/b2a.gif";
	b3a = new Image;
	b3a.src = "images/b3a.gif";
	p0a = new Image;
	p0a.src = "images/p0a.gif";
	p1a = new Image;
	p1a.src = "images/p1a.gif";
	p2a = new Image;
	p2a.src = "images/p2a.gif";
	h0a = new Image;
	h0a.src = "images/h0a.gif";
	}

function On(imgName) {
if (document.images) {
 imgFile = "images/" + imgName + "b.gif";
	document [imgName].src = imgFile;
 }
}

function Off(imgName) {
if (document.images) {
	imgFile = "images/" + imgName + "a.gif";
	document [imgName].src = imgFile;
	}
}