function rollover(img,s) { 
		if(typeof img == "object") {
			if(img.tagName == "IMG") { 
				var imgObj = img; 
			} else if(img.tagName == "A") { 
				for(var i=0; i<img.childNodes.length;i++) { 
					if(img.childNodes.item(i).tagName == "IMG") { 
						var imgObj = img.childNodes.item(i); break; 
					} 
				} 
			} 
		} else { 
			if(document.getElementById) { 
				var imgObj = document.getElementById(img); 
			} else { 
				img = img.split("."); 
				if(img.length > 1) { 
					if(document.layers) { 
						var imgObj = null; 
						for(var i=0;i<(img.length-1);i++) { 
							imgObj += "document.layers."+img[i]+"."; 
						} 
						imgObj = eval(imageObj+"document.images."+img[img.length-1]); 
					} else if(document.all) { 
						var imgObj = document.images[img[img.length-1]]; 
					} 
				} else { 
					var imgObj = document.images[img]; 
				} 
			} 
		}
		if(imgObj != null) 
			imgObj.src = s;
	}