JQuery jqModal not re-initialising after show, and eval() not working on __doPostBack()

Question

Hi,

I'm trying to get the JQuery jqModal extension to work as a confirm box, as per the example given on the jqModal website ( http://dev.iceburg.net/jquery/jqModal/ ), and incoprate this function into a dotnet usercontrol so I can re-use it over the website.

This is the code I've written so far. The control has a TriggerID property which is the ID of the linkbutton control that will fire the function. Because it's a linkbutton, I figured that on a "yes" click in the confirm I could simple use eval() on the href attribute of the linkbutton to re-create the postback, since dotnet creates the control with a javascript call to __dopostback in the href.

<div id="policypopup" runat="server" class="policypopup">
<h2>
    <asp:Label ID="LblTitle" runat="server">My Title</asp:Label>
</h2>

  <div class="jqmConfirmContent">
      <p class="jqmConfirmMsg"></p>
      <p>Continue?</p>
  </div>

  <input type="submit" value="no" />
  <input type="submit" value="yes" />
 </div>

<script type="text/javascript">
         function confirm(msg, callback) {
        $('#<%= policypopup.clientId %>')
        .jqmShow()
        .find('p.jqmConfirmMsg')
            .html(msg)
        .end()
        .find(':submit:visible')
            .click(function () {
                if (this.value == 'yes') {
                    eval(callback);
                }
                $('#<%= policypopup.clientId %>').jqmHide();
            });
    }

    $().ready(function () {
        $('#<%= policypopup.clientId %>').jqm({ overlay: 88, modal: true, trigger: false });

        $('#<%= Me.TriggerID %>').click(function () {
            confirm('Are you sure you want to delete?:', this.href);
            return false;
        });
    });
</script>

However I have two problems with this script as is: 1) The eval of the href is not causing a postback. I've checked to make sure that the value of href is being passed correctly (it is), and that eval will correctly evaluate simple functions prefixed with javascript: (it will). So I'm at a loss to know why it won't work as written. 2) After firing the confirm box once, it will not fire again. I've tried placing the initialisation code into a separate function and calling it again from confirm() but no dice. Is there any way I can get this to keep on firing up confirm boxes without having to cause a postback?

EDIT: Further investigation is suggesting this may be related to the controls in question being in an updatepanel. But that hasn't helped me solve the problem thus far.

Cheers, Matt