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Understanding Frames

The evolution of frames was helped along when Netscape started using frames, and Web developers have helped in the evolution of frames as sophisticated features of Web pages. Simply put, framing is a method of placing two or more windows on the screen and giving the viewer individual control of none, some, or all of them. Frames can even contain other frames, and the page within a frame can reference other pages independently of the rest of the display. This gives a web designer great flexibility in choosing how to organize and present information, whether it's text, graphics, or other varieties of content.

To see what this means, look at the example in Figure 10.1. The fixed frame at the bottom of the screen (it's labeled "Index") contains links that will change the pages appearing in the narrow left frame. In the left frame, in turn, are more links; each of these opens a new page in the large main frame.


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