When there is no server side functionality needed we create the whole site in plain html. Usually these sites have left/right side menu, top header, footer etc.. If the site grows in to 20, 30 pages, it will be a headache to do a simple change like changing footer text. We will have to change each page. If we were using a server side technology like PHP, JSP, etc.., we will have the chance to keep the common areas in the site in different pages and include these parts in each page using a “include” statements. We can do the same thing with the plain old html and javascript. But how? First you need to create the site main layout using divs and give them unique ids. <html> <title>HTML Includes</title> <script language="javascript" src="js/main.js"></script> <script src="js/prototype.js" type="text/javascript"></script> <script language="javascript" xml:space="preserve"> // <