Dropdown menu is outside of window area - Bootstrap

Question

The dropdown menu of Bootstrap Twitter is open on bottom and not appear because is outside of window area. I need show on top. Have a property to force appear on top?

Answer 1

To get the menu to go up the way you just add the .dropup class on to the div with the .btn-group class.

<div class="btn-group dropup">
  <a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
    Action
    <span class="caret"></span>
  </a>
  <ul class="dropdown-menu">
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
      <li>aaaaa</li>
  </ul>
</div>

Full info here:

http://twitter.github.com/bootstrap/components.html#buttonDropdowns