Thanks TJ /Jarkko my code is now working. Based on your suggestions, and other suggestions I got on #prototype @irc I moved this code to the <head> of the document, and replaced the Event.observe used to detect the page unloading with a 'window.unload = function;' call. thanks to all who provided help! -- fernan -- You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To post to this group, send email to prototype-scriptacul...@googlegroups.com. To unsubscribe from this group, send email to prototype-scriptaculous+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/prototype-scriptaculous?hl=en.