How to solve this conflict, pls help me

How to solve this conflict, pls help me

Hi,
 
how to handle conflict, when using 2 js libraries, Prototype(validation purpose) and Jquery
 
 
<!-- start :: Prototye :: JS -->
<script src="v/scriptaculous/lib/prototype.js" type="text/javascript"></script>
<script src="v/scriptaculous/src/effects.js" type="text/javascript"></script>
<script type="text/javascript" src="v/fabtabulous.js"></script>
<script type="text/javascript" src="v/validation.js"></script>
<link rel="stylesheet" type="text/css" href="v/style.css" />
 
<!-- start :: JQUERY:: JS -->
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript" src="js/ddaccordion.js"></script>
<!-- start :: Default text in text box :: JS -->
<script src="js/jquery.defaultvalue.js" type="text/javascript"></script>
<script type="text/javascript">
   // <![CDATA[
   
   
   $(document).ready(function(){   
    $('#email').defaultValue('Username');
    $('#pass').defaultValue('  Password',function(d){
     alert(data);
    });
   }); 
   // ]]>
  </script>












<!-- end :: JQUERY:: JS -->
 
 
I tried using conflict funtion
 
<script type="text/javascript">
   // <![CDATA[
   
   jQuery.noConflict();

   

jQuery(document).ready(function(){   
    
jQuery('#email').defaultValue('Username');
    
jQuery('#pass').defaultValue('  Password',function(d){
     alert(data);

    });
   }); 
   // ]]>
  </script>





 
Thanks