if (navigator.userAgent.toLowerCase().indexOf('msie') != -1) {
  onload = function setExternal() {
    domain = 'droombeek.nl';
    domain2 = 'google.com';
    re = new RegExp('^http://([www|test].)?'+domain);
    re1 = new RegExp('^http://([www|maps].)?'+domain2);
    for (i=0; i<document.getElementById('content').getElementsByTagName('a').length; i++) {
      if ((!document.getElementById('content').getElementsByTagName('a')[i].href.match(re)) &&
      	(!document.getElementById('content').getElementsByTagName('a')[i].href.match(re1))) {
        document.getElementById('content').getElementsByTagName('a')[i].className = 'offsite';
      }
    }
  }
}