How to disable form popup button?

Hi,Everyone

I am using javascript to open a form create window.

ex. window.open("/main.aspx?etn=account&pagetype=entityrecord&extraqs="...

And also pass some parameters to the create record to set some fileds values in form loadEvent.

All these worked well.

But when user click "popup button"(top right in the form) in the create form.Some javascript error occoured. Becasuse the javascript can't get the parameter passed from the previous page.

I wonder is there a way to disabled the "popup" button?

Best Regards,

Reimei Ou