[jQuery] Drop-down menu / PHP mark-up

[jQuery] Drop-down menu / PHP mark-up


Hello! I have a list of messages which I want to sort with the help of
a jquery drop-down menu.
It is a template file with an underlying PHP/MySQL application.
All what I would like to do is to change a variable value and refresh
(or not refresh?) the same page when someone uses the drop-down menu.
I don't know how to mark this up. Could please anybody send me a hint
or a link? Thank you!