Hello,

I have a doubt and perhaps you can help me.

I want checked a checkbox when I use a confirm window.

The code:
 protected void OntggReservationUniqueIDChange(object sender, AjaxEventArgs e)
{
     this.chkPassage.Enabled = true;
     Ext.Msg.Confirm("Confirm", GetMessage("checkPassage"), new JFunction { Fn = "checkPassage" }).Show();
}
 var checkPassage = function() {
        document.formContract.chkPassage.checked = true;
        }
<body>
<form id="formContract" runat="server">
<ext:ScriptManager ID="ScriptManager1" runat="server" StateProvider="None" Theme="Slate" />
    <ext:ViewPort ID="ViewPort1" runat="server">
       <Body>
       <ext:BorderLayout ID="BorderLayout1" runat="server">
        <North MarginsSummary="1 1 1 1" AutoHide="true">
            <Center MarginsSummary="1 1 1 1" AutoHide="true">
                <ext:Panel ID="PanelCenter" runat="server" Frame="true" AutoScroll="true" BodyStyle="padding-left:5px;">
                    <Body>
                   ...
                        <table>
                           <tr>
                              <td>          
                                 <ext:Checkbox ID="chkPassage" runat="server" FieldLabel="<%$ Resources: chkPassage %>" />
                              </td>
                           </tr>
                        </table>
                        ...
                     </Body>
                  </Panel>
               </Center>
            </ext:BorderLayout>
         </Body>
      </ext:ViewPort>
   </form>
</body>
But it doesn't check the control. What is my wrong? :S

Thank you in advance.