how to send messages between pages?

[eluser]Unknown[/eluser]
hi my friends, i am building an aplication with codeigniter
I want to send a message from the page 1(client) to the page 2(server) the message is personal information like name and last name.
BUT the page2(server) has to have a form including two option accept or deny, if we click accept save in data base. If we click deny, send a error message.
There is a example in the document but i dont know how to add the form or where to add it.
byeee.
(sorry, but my english is too bad)