cssdir = 'http://image.kget.jp/kgetweb2/cmn_v071100/css/';
fixcss = '';
ua = navigator.userAgent;
if (ua.indexOf('Windows NT 6') > -1) {
  //alert ('Welcome Longhorn user! : '+ua);
  fixcss = 'fix_vista.css';
} else if (ua.indexOf('Netscape') > -1) {
  //alert ('Welcome Netscape user! : '+ua);
  fixcss = 'fix_netscape.css';
}
if ('' != fixcss) {
  document.write('<link rel="stylesheet" type="text/css" media="screen, tv" href="'+cssdir+fixcss+'" />');
}