AJAX select: How to send the selected value to AJAX action?

You can do this:

<%= select(:preferences,                   :job_history_filter_period,                   ContactPreference::JOB_HISTORY_OPTIONS,                   options = {},                   html_options = {                                          :onChange => "new Ajax.Request('/controller_name/modify_history_time_period/' + this[this.selectedIndex].value, {asynchronous:true, evalScripts:true});"                                          }                  ) %>

It's not as clean as the helper but gets the job done.

Cheers, Atha