cfselect validation not working with CF8

I recently upgraded to CF8 and now my form validation does not work.  I was reading an article that discussed an edit to the cfform.js that i did. But I still get nothing. 

I've looked at the source code and the javascript is in the html but it will not trigger... any ideas

here is an example of a cfselect that does not validate properly.


<cfselect display="description" query="getselect" value="cat_id" selected="#cat_field_value#" name="cat_id" required="yes" size="3"
  message="You must choose a heading">

Thanks,

Wayne