I use CuteEditor to instead of the TextArea

 

I have a javascript function: set_updated() when the textarea content change

<textarea name=background class="programme" onchange="set_updated()">

 

How to set the CuteEditor as same function.

 

I use Cute Editor for .NET, but the coding format just like ASP only.
I know that if using .NET, I can add the function in OnTextChange Function. But because of the ASP coding, I don't know how to do.