I have a page with a search form. I then used that page as a plugin on another page but the date picker will not work? The original page is searchForm.php and the page with the plugin is www.cuadmemo.com/search.php. Just wondering what may be causing this issue? 
Hi
You have two references to the jQuery library in your page:
In line 16/17 you have a reference to the WA version:
<script type="text/javascript" src="webassist/jquery/jquery.js"></script> <script type="text/javascript" src="webassist/jquery/jquery-ui.js"></script>
In line 57 of your source code you have:
<script src="js/jquery-1.4.2.js" type="text/javascript"></script>
...which is causing the problem.
Try to comment that out and see, if it works.
HTH
Willi


