For this reason VBscript is not used on the Internet, but sometimes used on Intranets in organizations that only have Microsoft Internet Explorer browsers. The rule of HTML is to ignore everything between tags that the browser does not understand. Some HTML tags are specific to Netscape and some to Microsoft's Explorer. Sometimes it is necessary to write a script that is processed on the server. CGI scripts can be written in many programming languages.
C are probably the most popular for writing CGI scripts.
For exam remember that JavaScripts and PERL scripts are plain text files and can be written using any text editing application like notepad. This is a must have book for a web designer. Good for beginners and for experienced web masters.