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Chapter 4 Preview This chapter discusses languages in addtion to HTML that could make your pages much better than with just simple HTML. The best pure HTML pages don't compare to pages that have more languages in it. Lesson JavaScript JavaScript is one of the best ways to add on to an HTML document, because of it's flexibility and control over an webpage. You can directly deal with an element and its attributes in the document. Also, a script can be either inline (inside the document) or as a seperate file. If it is a seperate file, then any page can access it. So, with flexibility and fine control, JavaScript is a very powerful HTML add on languge. CGI/Perl CGI isn't really a language, but more of a template to explain how to do certain things, and Perl is the main language to use for CGI. CGI is, by far, the most powerful add on language. You can edit files on the fly, send e-mails, and many more things. All CGI/Perl scripts are external scripts (seperate files), but they can access other files. Real Programming Languages Technically they aren't add on languages, but they can be used to make webpages better. They can create chat applications or online games, or you can just have applications that people can download. Real programming languages are languages that create applications, examples are C, C++, BASIC, Java, COBAL, and FORTRAN.
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