Thanks Dave, I'm still not sure why my visible() comparison wrapper was registering as null when i originally first attempted to perform the functions, because that looks something like what I first tried.
Thanks again to Jason suggestions to use a Hash, I have since modified the interface to utilize two hashes, one for the systems, and one for the 8 modules of each system. the relatively stable navigational interface is working mostly how I want it now. http://monkeypanelcom/demo Sm:)e On Tuesday, October 16, 2012 1:30:17 AM UTC-4, DaveK wrote: > > To answer your OP directly (not sure if it has been, I didn't notice it). > > open_div = 'system'+k+''; > ... > if ($(open_div).visible()==true) { > > if there is no item with id 'system'+k then $(open_div) returns null > (correctly) and so $(open_div).visible() throws an error. (for example > if nothing has "id='system123'" then when k-123 the error wiil throw) > > You can avoid it with: > > if ($(open_div)) { > if ($(open_div).visible()==true) { > > > Dave > -- You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To view this discussion on the web visit https://groups.google.com/d/msg/prototype-scriptaculous/-/k3nbGQ3PkhgJ. To post to this group, send email to prototype-scriptaculous@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.
