termi1uc1/Element.details — comment on commit 430ff71bf0424b9bcf00ac980c086f181518b2d3
File: __SRC/Element.details.js line 92
By Raynos:

That's ugly. If possible can you not just detect in the click whether keyup fired just before it.

This issue is that in opera both keyup and click would fire. So gaurding againts it in the click handler is a more elegant solution.