I think there is some problem in your code, because code similar to your description exists e.g. in Scriptaculous:
Effect.Base = Class.create({ position: null, start: function(options) { ... }, ... }); Effect.Parallel = Class.create(Effect.Base, { initialize: function(effects) { this.effects = effects || []; this.start(arguments[1]); }, ... }); and we definitely know it works in IE7. -- 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/-/cXcXgCyEXswJ. 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.