Conditional Displaying form properties - Seek Advice

[Dan Tran]

Hi I would like to display/disable a set of form's properties base on another 
properties in the form.

some thing like this

<html-el:form ....>

<table>
    if ( theForm.aProperty)
    {
       <tr>
           <td>
               <html-el:text property="myprob" />
           /td>
       </tr>
    }
</table>
</html-el:form>


Advice is greatly appricated.  

-Dan