我在哪里以及如何为rails 3.1选择标记onchange事件编写事件处理程序？

I am trying to do a very basic onChange event handler for a Rails 3.1 select tag. Most of the solutions I find are specific to ajax, but I am looking for something more simple, and what I have coded does not even seem to be recognized. In my view, I have the following:I am trying to do a very basic onChange event h