[Yang Xu]

There are two ways to do the round corner on menu:

1. create a left and right corner images, use table to put the images on the right location and other area uses back ground color.

- advantages: less images to load and reduce bandwidth
- disadvantages: html codes will be complicated

2. create an image as a shape of menu top and use it as back ground image.

- advantages: html codes will be very simple
- disadvantages:larger size image to load and increase bandwidth