Frames are used to divide a single screen into two or more separate windows. Each window is controlled separately. For example, a top frame might have navigation buttons that are always visible, while the lower frame contains a long, scrolling text article. In most cases, we will automatically switch to a non-frames version of the page. If that is not possible, we'll display a message indicating that you need to use a frames-capable browser.
Navigation can be tricky when frames are in use.
Sometimes, the Back and Forward buttons will affect only the one frame. In these cases, click the Back or Forward button several times to go to another page. For these reason, we use very few frames in our site. We are always happy to hear from our visitors, and try to respond within 24 hours. In most instances, you can print Web pages simply by pressing the Print button at the top of the screen, or choosing P rint from the F ile menu.