How to determine whether click happened on element's scrollbar or on its content

Question

There is indeed method element.componentFromPoint(iCoordX, iCoordY) in Internet Explorer, but how do I differentiate a mouse click occurred in the content area of an element from the click occurred on its scrollbar in other browsers?

Answer 1

In Gecko-based browser it is possible to check on Event.originalTarget. If click happened on element's scrollbar this property will have a XULElement object returned. WebKit and Presto to go...