Here is some missing code from the same page.
<
div style="visibility: hidden">
<
CE:Editor id="Editor1" width="1" height="1" runat="server" AutoConfigure="None"
ShowHtmlMode="False" ShowPreviewMode="False" EnableContextMenu="false"
ShowGroupMenuImage="False" ShowBottomBar="False" BackColor="#dedede"
BorderColors="#dedede"></CE:Editor>
<asp:HiddenField ID="HiddenField1" runat="server" />
</
div>