[TYPO3-english] Typoscript Help

[Shiny Sky]

<a href="sky/home/" onfocus="blurLink(this);"  class="level1-act">Home</a>
<a href="sky/group-members/" onfocus="blurLink(this);"  class="level1-no">Group Members</a>
<a href="sky/colloquium-ss13/" onfocus="blurLink(this);"  class="level1-no">Colloquium_SS13</a>
<a href="sky/colloquium-ws1213/" onfocus="blurLink(this);"  class="level1-no">Colloquium_WS12/13</a>
<a href="sky/colloquium-ss12/" onfocus="blurLink(this);"  class="level1-no">Colloquium_SS12</a>
<a href="sky/research-projects/" onfocus="blurLink(this);"  class="level1-no">Research Projects</a>

This is the standard menu generated by typoscript. 
My question is that how can I create php file in typo3 and link it in href of the menu as the following?

  <a href="sky/research-projects/project.php" onfocus="blurLink(this);"  class="level1-no">Research Projects</a>