title: OnCommand Not Firing After OnClientClick return confirm
body: <p>I have this delete function that was working perfectly fine. Wanted to add a confirmation right before the user decides to delete it, but now my delete won't work after the user returns OK from the confirmation box.</p>
  
  <p>HTML:</p>
  
  <pre><code>&lt;div&gt;
      &lt;asp:Button ID="btnDelete" UseSubmitBehavior="false" runat="server" Text="Remove" 
          CssClass="appdl" CommandName="Remove" OnCommand="AppsList_ItemCommand" 
          OnClientClick="return confirm('Are you certain you want to delete?');"
          CommandArgument='&lt;%# Eval("ID") %&gt;' /&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>As you can see in the HTML above, I'm using OnCommand to perform the delete function. After I added in OnClientClick, OnCommand seems to stop firing, even after I click OK. Not really sure what's wrong. Any pointer would be very much appreciated.</p>