if (document.images) {
		image = new Array();
		image["olink1"] = new Image();
		image["olink1"].src = "horiz_6_373ib_stone.jpg";
		image["olink2"] = new Image();
		image["olink2"].src = "horiz_6_373ib_wht.jpg";
		image["olink3"] = new Image();
		image["olink3"].src = "horiz_6_373ib_blk.jpg";
		image["base"] = new Image();
		image["base"].src = "horiz_6_373ib_offwht.jpg"
		}

	function over(imageName) {
			if (document.images) {	
				document.images["target"].src = image[imageName].src;
			}
		}

	function off(imageName) {
			if (document.images) {
	                  		document.images["target"].src = image["base"].src;
			}	            
		}