if (screen.width > 1200) { document.write('<LINK rel="stylesheet" href="styles/sbf_1200.css">'); }
else
if (screen.width > 1000) { document.write('<LINK rel="stylesheet" href="styles/sbf_1000.css">'); }
else
{ document.write('<LINK rel="stylesheet" href="styles/sbf_800.css">'); }