I understand that I wouldn''t be able to directly query into the DOM/CSS of a page from within an RJS file because it runs on the server but is there any way to populate a variable from the controller or something to gain access to DOM information? What I want to do is this: I have some RJS to blind_down an error message panel, but if the form is resubmitted and there are still errors, the blind_down still plays from the beginning because the RJS just says to blind_down with no conditions. I would like to be able to query the visibility of the error div to determine if I should blind_down or just leave it visible and replace the content. Is there any way to do this?