HtmlEditor Validation if field have blank value

Hi,



I want to validate htmleditor field if its value is blank.

I have tried vtype and allowBlank but htmleditor does not support that.



Steps

1) Add htmleditor field and submit button in form panel

2) If value is blank then disable submit button.

3) if enter value in htmleditor field then enable submit button.

4) if i remove text from htmleditor field till blank value then again disable submit button again.



Regards

Yogesh