How do you surpress the following PHP Warning:
Undefined variable: submitjoke in C:\Inetpub\wwwroot/php/deletejokes.php on line xx

Basically, there is an HTML form on the .php page but through the use of the PHP if: else: contol structure the PHP variable $submitjoke created by the NAME="submitjoke" form attribute is not processed at that time leading to the undefined variable.

I hope I was clear!