function swap_image(image,imagename) 
{
	bname = navigator.appName;
	bvers = parseInt(navigator.appVersion);
	 if ((bname == "Netscape" && bvers >= 3) || (bname == "Microsoft Internet Explorer" && bvers > 3))
	 {
			document.images[imagename].src="/common/images/"+image;
   }
}