Ajax script to fetch details from database, according to the name or id selected from drop down list box. (Create correct database and insert values before you test)
Rating: 4

Downloads: 8
User login / Sign in script. Allow user to login without refreshing the page. (Create correct database and insert values before you test)
Rating: 4

Downloads: 6
Ajax script to get suggestions from database when user type in an input box. (Create proper database and insert values before you test it)
Rating: 2.5

Downloads: 4
This is an Ajax script, for polling. It will allow one user to vote once.
Rating: 4.25

Downloads: 18