I'm trying to pop open a window and (from the parent window) test for the existence of an inline javascript function in that child window. I'm trying to use the Event.ready() function called from the parent window, but it doesn't seem to be working reliably across FF / IE / Safari. Sometimes the child.ready() function fires off before it is in fact ready. I do have several javascript files and a flash object in the popup child window. Would that have any impact?