Hi, I am building a small site for fun, and I want to put a list on it. For every file or element in the list, I want to have two buttons. One to upvote that particular element, and one to downvote. Each element will be put in order on the list from highest number of upvotes to lowest, and I don't want any users to be able to vote more than once on each element. Does anyone know how to do this? The list should be able to display the number of votes each element has next to it. THANK YOU IN ADVANCE!