Represents the state of an event, such as the element in which the event occurred, the state of the keyboard keys, the location of the mouse, and the state of the mouse buttons.
altKey , button , cancelBubble , clientX , clientY , ctrlKey , dataFld , dataTransfer , fromElement , keyCode , offsetX , offsetY , propertyName , qualifier , reason , recordset , repeat , returnValue , screenX , screenY , shiftKey , srcElement , srcFilter , srcUrn , toElement , type , x , y
bookmarks , boundElements