Hey all, I''m trying to update a div everytime the value of my textbox is changed: here is _form.rhtml: <p><label for="bookmark_address">Address</label><br/> <%= text_field ''bookmark'', ''address'' , :size => 120 %></p> <div id="ajaxtitle"> <%= render :partial => ''bookmarktitle'' %> </div> <%= observe_field ''bookmark_address'',:frequency => 0.5, :update => ''ajaxtitle'', :url => {:action => ''bookmarkaddress'' }, :with => "''url='' + bookmark_address.value" %> and this is the updated part _bookmarktitle.rhtml: <p><label for="bookmark_title">Title</label><br/> <%= text_field ''bookmark'', ''title'' , :value=>@title, :size => 120 %></p> the function bookmarktitle: def bookmarkaddress @title = "test value" end However when I modify champ bookmark_address, nothing happens. Any idea what''s wrong in my code? Thanx in advance Pat