var wd=screen.width; var isNS = (navigator.appName == "Netscape"); if(wd == 800) { if(isNS) { document.write(''); } else{ document.body.background = "/gifs/bg-800.gif"; } } if(wd == 1024) { if(isNS) { document.write(''); } else{ document.body.background = "/gifs/bg-1024.gif"; } }