JavaScript
----------

    function pick(names) {
      var r = Math.floor(Math.random * names.length);
      for (var i = 0; i < names.length; i++) { if (i >= r) { break; } }
      return names[i-1];
    }
    alert(pick(["John", "Jeff", "Emma", "Steve", "Julie"]));

The gods have spoken, Julie. Don't fight destiny.