Sorry if I answer wrong question, but this is because the question is not clear at all (not even a question).
So, to answer just a question in the title, I would advise only one thing: pay attention for the Ajax methods of jQuery. Please see:
http://api.jquery.com/category/ajax/[
^].
Sorry if you you already knew all that and if my answer cannot help you. Perhaps you need to seriously revise your question and use "Improve question" in order to get better advice.
—SA