[TYPO3] Form confirmation page

[Todd Ellison]

Hi all,

I'm writing my first extension, so this probably won't be the only 
question.

My extension is for a non-profit organization who would like to take 
donations via credit card on their site. I have the form setup using the 
kickstarter and it is almost finished. I would like to give the editors 
the ability to insert this donation form as a content element on any 
page in their site. However, when the user clicks the submit button, I 
would like to have the extension take over the entire content of the 
page (removing all other content elements) and ask the user for 
confirmation. Could someone point me to a resource explaining how to do 
this in my PHP code?

Thanks