In the last chapter, we saw how scripts can be added to XHTML documents. Scripts can manipulate a variety of form elements and, in the case of so-called Dynamic HTML, the page elements themselves. Scripts also are used to access embedded binary objects. As discussed in Chapter 9, embedded objects can be used to bring multimedia, such as sounds and movies, to the Web. They also can be used to add small executable programs to a page. Binary objects come in many forms, including Netscape plug-ins, Microsoft ActiveX controls, and Java applets. Each of these requires special markup. In the future, all included media types will be added with the object element. However, until such standardization is universally supported, it is useful to study each individual technology with particular emphasis on how it can intersect with markup.
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