And mouse wheel events

Mouse events are the most commonly used Web development a class of events, because the mouse is the main pointing device.

• click --- user clicks the left mouse button or press the Enter key trigger
• dbclick --- user double-clicks the left mouse button trigger.
• mousedown --- the user presses any mouse button is triggered.
• --- MouseEnter the mouse cursor from the first element to the elements outside the range triggered. This event is not bubbling .
• --- MouseLeave upper element to move the cursor beyond the range of elements trigger. Not bubbling .
• mousemove --- cursor constantly moving internal elements triggered.
• --- mouseOver mouse pointer is an external element, then the user first moves the trigger boundaries within another element.
• mouseOut --- triggered when the user moves the cursor to the top of one element from another element.   
• mouseup --- in the user releases the mouse button is triggered.

　　Notice: All of the above events and in addition mouseenter mouseleave are bubbling.

　　Important: Only on the same elements have triggered mouseup and mousedown events, will trigger a click event. Similarly, only two click trigger event on the same element, will trigger dbclick event.

　　Generating process dbclick events is as follows:

1. mousedown
2. mouseup
3. click
4. mousedown
5. mouseup
6. click
7. dbclick