I am unable to edit my gadget in dashboard

[Shea Faigan]

<?xml version="1.0" encoding="UTF-8" ?>
<Module>
  <ModulePrefs

      title="Gadget"
      description="Description"
      author="Shea Faigan"
      author_email="email"
      directory_title="Gadget"
      height="500">

  </ModulePrefs>

  <UserPref
      name="isConfigured"
      datatype="hidden"
      default_value="true" />

  <UserPref 
      name="default_chart" 
      display_name="Default Chart" 
      datatype="enum"
      default_value="a"
      required="true">
    <EnumValue value="a" display_value="b" />
    <EnumValue value="c" display_value="d" />
    <EnumValue value="e" display_value="f" />
  </UserPref>
  <UserPref 
      name="filter" 
      display_name="Filter" 
      datatype="enum"
      default_value="all"
      required="true">
    <EnumValue value="a" display_value="a" />
    <EnumValue value="b" display_value="b" />
    <EnumValue value="c" display_value="c" />
    <EnumValue value="d" display_value="d" />
    <EnumValue value="e" display_value="e" />
    <EnumValue value="f" display_value="f" />
  </UserPref>

  <Content type="html">

  <![CDATA[

    <iframe
      id="metrics"
      scrolling="no"
      src=""
      height="435"
      width="600">
    </iframe>

    <script type="text/javascript">
      var prefs = new gadgets.Prefs();
      document.getElementById("metrics").src="http://url.com/" + prefs.getString("default_chart") + "/" + prefs.getString("filter");
    </script>
  ]]>
  </Content>
</Module>

I see the edit button, I can click it, but nothing happens when I do.

Thanks,

Shea