1. Design a webpage to display picture A initially.
2. Try to move the mouse. When the mouse is not within the area of the picture, picture A remains the same. When the mouse is within the area of the picture, display picture B in place.
You can use the photo in http://minstral.blogspot.tw/2013/06/blog-post.html for picture A
and the photo in http://minstral.blogspot.tw/2013/05/blog-post_30.html for picture B.
Hint: You may find the example useful.
Hint: If you have a problem displaying a picture on the browser, you can check out the example.