var width = document.viewport.getDimensions().width;
if (width > 1280) {
   document.writeln('<link rel=\"stylesheet\" href=\"/css/1600.css\" type=\"text/css\">');
    }
if (width == 1024 || width < 1024) {
   document.writeln('<link rel=\"stylesheet\" href=\"/css/1024.css\" type=\"text/css\">');
    }