Using AJAX with a simple makeRequest for a file, how can I escaped single quotes?

Hi all,

I am using a simple makeRequest, like

<a href="#showContent" onClick="makeRequest('preface.php?nocache=<?php echo time();?>','showContent')">Preface</a>

Code (markup):

In preface.php I have text, like world's. But it becomes world?s in layer showContent??

How can I escaped single quotes?

 

Have you tried this?

world\'s