jQuery - Make all external links open in new tab/window

gistfile1.js

// JQuery - Make all external links open in new tab/window
// Mashup of:
// http://travisroberts.tumblr.com/post/595428703/jquery-external-links-open-new-window
// http://snipplr.com/view.php?codeview&id=29949

$(document).ready(function() {
  $("a[href*='http://']:not([href*='"+location.hostname+"'])").click( function() {
    window.open( $(this).attr('href') );
    return false;
  });
});