Thank you all for you advice.
I am aware of the two ways of achieving the required result ie: JS and
extra button built into my script.
But wouldn't it be nice to have a class or function we could all use
built in to php that would let us do this.
C,C++,Delphi and JS allow you to do this.
I have come across various probs with JS on client systems so I shy away
Again thank you all for your advice.