Delete confirm message not working with ajax

[anish5000]

Hi,

I have a page in which the code is as below:

<%@ taglib prefix="s" uri="/struts-tags"%>

<s:url id="delete" action="delete" >                 
  <s:param name="proj.id" value="id" />
</s:url>
<s:a href="%{delete}"  onclick="return confirm('Are you sure?');" theme="ajax" notifyTopics="selected_Project" formId="projectForm">Delete</s:a>  

Now the issue over here is,
when i click on the delete button i get a window asking permission for "ok" or "cancel" but even if i click on cancel it executes the action, that is delete.

The same thing is working when out in the code:

<s:url id="delete" action="deleteCreated">                
            <s:param name="proj.id" value="proj.id" />
            <s:param name="proj.type" value="proj.type"/>
            </s:url>
<s:submit href="%{delete}"  action="deleteCreated" value="Delete"  cssClass="butStnd"  />

I need help

Please advice exactly what code should be putin to get this working.

Regards,
Anish