I finally revised Pandan.ph – Pandan Antique Philippines website. The web design is still the same. I just changed the HTML tags to XHTML using simple PHP at the same time.
I removed the directory and the subsections under links. I used .htaccess to redirect the HTML pages to PHP as well as the pages that I removed, so as not to have dead links.
Then, I installed WordPress for News Updates and Photo Gallery making it more interactive, easy to update and simple to manage. News and Gallery are the only pages where I used WordPress.
I checked if the CSS and XHTML used are valid. So far so good, just need to check them one more time. I checked if the pages are ok using Internet Explorer, Firefox, Opera, and Netscape, and everything seems fine.