DOM level 2 event listener question(question in detail)

[Ronak Patel]

hi there,
i have read DOM level 2 spesification and seen event listner(UI and mouse)in Professional XML 2nd Edition. UI contains DOMFocusIn,DOMFocusOut and DOMActivate type.Mouse event contains click,mousedown , mouseup, mouseover, mousemove and mouseout type.
I can not understand how come we can use this UI and mouse events different type with DOM. If i have one DOM tree then when mouseover or focuslost type event fire? If possible than answer me with example.
In waiting of reply.

[Scott Duffy]

The best example is HTML.
HTML implements a Document Object Model for its content.
When the user passes their mouse over an image, a "onMouseOver" event fires, and if there are any JavaScript functions "listening" for that event, the code will run.
The HTML event model is similar to the event model proposed by DOM2.
Scott
MCSD, SCJP, IBM-XML

[Ronak Patel]

Thanks scott.
If anybody have coded example of this then please put up on this post.
With Regards.