  function assignStyleSheet() {
    if (screen.height == 768 && screen.width == 1024) {
      //document.createStyleSheet('tandem1024.css');
      document.writeln('<link href=\"styles/tandem1024.css\" type=\"text/css\" rel=stylesheet>');
    };
    if (screen.height == 600 && screen.width == 800) {
      //document.createStyleSheet('tandem800.css'); 
      document.writeln('<link href=\"styles/tandem800.css\" type=\"text/css\" rel=stylesheet>');
    }
    if ((screen.height > 768) || (screen.width > 1024)) {
      //document.createStyleSheet('tandem1152.css');
      document.writeln('<link href=\"styles/tandem1152.css\" type=\"text/css\" rel=stylesheet>');
    }
  }


