if (xIE4) {
  document.write('<link href="ie4.css" rel="stylesheet" type="text/css" />');
}

document.write('<!--[if lt IE 6]>');
document.write('<style type="text/css">');
document.write('.menu1Up{width:149px;}');
document.write('.menu1Active{width:149px;}');
document.write('</style>');
document.write('<![endif]-->');