function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

window.onload = function() {
  var links = document.links;
  for (var i = 0, s = links.length; i < s; i++) {
    if (links[i].rel == 'external') {
      links[i].target = '_blank';
    }
  }
};