readonly nsIDOMEventTarget explicitOriginalTarget
The explicit original target of the event. If the event was retargeted for some reason other than an anonymous boundary crossing, this will be set to the target before the retargeting occurs. For example, mouse events are retargeted to their parent node when they happen over text nodes (bug 185889), and in that case .target will show the parent and .explicitOriginalTarget will show the text node. .explicitOriginalTarget differs from .originalTarget in that it will never contain anonymous content.
readonly PRBool isTrusted
readonly nsIDOMEventTarget originalTarget
readonly nsIDOMEventTarget tmpRealOriginalTarget
Reference documentation is generated from Mozilla's source.