JQuery Menu Anchor problem

JQuery Menu Anchor problem

Can anyone please tell me what i'm missing.

My code in short is:

$(document).ready(function() {
      $("#leftMenu").menu();
});

<ul id="leftMenu">
  <li><a href="/myPage.cshtml">My Page</a></li>
</ul>

When the menu is displayed and i click/select 'myPage' nothing happens, I would expect the page myPage.cshtml to be displayed.

regards
Henrik