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Summary

JavaScript can be used to implement an astonishing array of navigational aids ranging from simple pull-down redirection menu systems to complex CSS-based hierarchical menus. While such DHTML-based navigation aids are quite powerful, Web developers need to take care that they accommodate as large a segment of the browser population as possible. Getting scripts to work in all types of browsers under all conditions, including JavaScript being turned off, requires some significant effort. In the next chapter we’ll spend time looking at browser detection and support techniques to help overcome such obstacles.


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