rails & markdown error: uncaught exception: Control.TextArea requires Object.Event to be loaded

So, I've got bluecloth installed and I'm trying to use the Control.TextArea javascript WYSIWYG editor.

Anyways, I followed the tutorial on the page and开发者_Python百科 when I load the corresponding view, I get an error:

uncaught exception: Control.TextArea requires Object.Event to be loaded.

This comes from Control.TextArea js file.

Any ideas? Thanks