Linking one PDF to another

Hi,

I have Acrobat X1 Pro and am creating a couple of Fillable forms, at the bottom of the forms I will have two buttons Save and Send.  The document itself  will also have an accept and reject option but what I would like to do is if I click on select, a second stage PDF form will come into view for completion.

Is this possible to do and if so, how would I do this.

FYI the forms will need to be used on both computers and iPads.

Thanks

Caroline