+----------------+--------------------------------------------------------------+
| Properties |altKey altLeft |
| |button cancelBubble |
| |clientX clientY |
| |ctrlKey ctrlLeft |
| |fromElement offsetX |
| |offsetY returnValue |
| |screenX screenY |
| |shiftKey shiftLeft |
| |srcElement toElement |
| |type x |
| |y |
+----------------+--------------------------------------------------------------+