Published on 2005-08-31 03:15:14

QuirksBlog have an interesting article about addEvent() and how it is considered harmful.

Back in 2001 Scott Andrew LePera published the cross browser event handler script addEvent(), which was subsequently copied, revised, and used in many, many websites. I never used it, because I felt — and feel — it is wrong to assume that the W3C addEventListener and the Microsoft attachEvent methods are the same. They aren't, and the slight but important difference can trip up the unwary web developer.

There is many possible solutions like the Event.observe in Prototype, There is AddEvent Manager which not only does it allow multiple events to be attached to one object in both IE/Mac and IE/Win as well as DOM-Events-compliant browsers, but the "this" keyword operates correctly in all the aforementioned. Plus, it tracks and removes event ONUNLOAD to stop IE memory leaks.

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