Forum:Help with Javascript ratings system to appear at the bottom of pages

I would like to make a ratings system out of 10 for rollercoaster.wikia.com It would appear at the bottom of pages in the Roller Coasters category, and would allow pages to select a rating from 1 - 10, taking the form of a bar which where users can select a segment to vote. The average would also be shown as a number, and the number of votes would be displayed to. If someone can make that then that would be great, as I know no Javascript whatsoever.