mMouseClientX(0), mMouseClientY(0), mShowTooltips(PR_TRUE)
mMouseClientX(0), mMouseClientY(0)
XULPopupListenerImpl::XULPopupListenerImpl(void)  : mElement(nsnull), mPopupContent(nsnull),    mMouseClientX(0), mMouseClientY(0), mShowTooltips(PR_TRUE){	NS_INIT_REFCNT();	}