Как определить IE6 - Joomla 1.5: Шаблоны, разметка и макеты вывода

function isIE6() {
  $browser_name = navigator.appName;
  $browser_version = parseFloat(navigator.appVersion);
 
  $browser_ok = false;
  if ($browser_name == "Microsoft Internet Explorer" &&
      $browser_version <= 6.0)
      $browser_ok = 'true';
  
  return $browser_ok;
}

<?php if(isIE6() == 'True') echo '<link rel="stylesheet" href="templates/<?php echo $this->template ?>/css/template_ie6.css" type="text/css"/>';
else echo '<link rel="stylesheet" href="templates/<?php echo $this->template ?>/css/template.css" type="text/css" />' ; ?>

function check_ver() {

  $browsers = array('MSIE 6.0');

  $user_agent = $_SERVER['HTTP_USER_AGENT'];

  foreach ($browsers as $v) {
  if (stristr($user_agent, $v)) return 'True';
  }

 }

<?php if(check_ver() == 'True') : ?>
  <link rel="stylesheet" href="templates/<?php echo $this->template ?>/css/template_ie6.css" type="text/css"/>;
<?php else: ?> 
  <link rel="stylesheet" href="templates/<?php echo $this->template ?>/css/template.css" type="text/css" /> ;
<?php endif; ?>

<!--[if lt ie номер_версии]>
....
<![endif]-->