This is also a simple fix (sorry it took awhile to reply) was having problems with my computer.
Lets say for example your Web Root (where your main html files are) is /home/yourlogin/htdocs.
Go into that directory and create a new file called .htaccess <- Note the period infront of the name (all one word -- no spaces).
Open the file and add this:
AddType text/x-server-parsed-html .htm
AddType text/x-server-parsed-html .html
Save and exit. Your scripts should now work from your HTML pages.
As well if someone tries to load a page that is NOT on your server you can create customized Error Pages by including the following in your .htaccess file:
If you do elect to use the 404 (File not found) customized page, remember to make a 404.html file and upload it to your Web Root directory as well.
If you have any other questions let us know. As well I would like to hear back and see if this worked for you!