zoomkat, billroy and rockwallaby many thanks for your advices! I will try to build the code and test it and then i will give a feedback with my doubts (or conclusion XD ).
zoomkat i've been working on iframe and that is a very good and easy solution! I want to learn the two ways of doing this, so i'will do with iframe and other with javascript/AJAX like billroy and rockwallaby sugested!
I have more time during the weekeds then during the week (because of my job), so i maybe take a little bit time to feedback, but i will be working on it 
Many tanks!!