/document.write('Your settings are ' + screen.width + ' x ' + screen.height + '');/
if (screen.width == 640) { document.write('<link rel="stylesheet" type="text/css" href="640.css">'); }
if (screen.width == 800) { document.write('<link rel="stylesheet" type="text/css" href="800.css">'); }
if (screen.width == 1024) { document.write('<link rel="stylesheet" type="text/css" href="1024.css">'); }
if (screen.width == 1280) { document.write('<link rel="stylesheet" type="text/css" href="1280.css">'); }
if (screen.width == 1600) { document.write('<link rel="stylesheet" type="text/css" href="1600.css">'); }