Gets the object that the mouse pointer exited.
The previous object.
There are no standards that apply here.
You can use the fromElement property for onmouseenter, onmouseleave, onmouseover, and onmouseout events. For example, during an onmouseover event, the fromElement property gets the element that the mouse pointer has exited, and the toElement property gets the element that the mouse pointer has entered.
Build date: 1/23/2013