Server Side Include
Can I use Server Side Include files in my webpage?
You can use SSI on your webpage provided you do not use the "exec" tag and your files which are going to be included have a ".shtml" extension. For example, to include two files header.shtml and footer.shtml on all pages, include the following lines where the pages be included
<!--#include file="header.shtml" -->
<!--#include file="footer.shtml" -->