title: Show Specific Tab in Bootstrap
body: <p>I have the following lack of knowledge on javascript. I have a nav-tab menu with 5 different tabs that can be expanded. But I want when the page loads a spesific tab (based on the previous page or arguments in the url) to be expanded. On the bootstrap page they have the example: <br>
  <code>&lt;script&gt;
    $(function () {
      $('#myTab a:last').tab('show');
    })
  &lt;/script&gt;</code> <br>
  My question is that I have no idea what 'a' is and I can't get it to pass an argument so that for instance my second tab to be shown. If I pass integer or #reference instead of 'last' it does not work. Anyone knows what is the right syntax here?</p>