Plugin Wrapper on TextArea is not working in IE - working in other browsers

Hi All,

We wrote a code to popup the TextArea Field on double click event in any list or form applet.

This code is working fine in Chrome and Firefox , but showing below error in IE.

Any help from JS specialists would be appreciated.

Below piece of code is showing error

function TextArea2DialogPW() {

                SiebelAppFacade.TextArea2DialogPW.superclass.constructor.apply(this, arguments);

            }

"Unable to get property 'constructor' of undefined or null reference"

Please help.

Regards,

Gayathri