ADMB
Since 2004, we have been developing webapplications in PL/SQL (Oracle) for KMO Direct and Hora.
The webpages are written in PL/SQL, which generate HTML and Javascript code.
The PL/SQL allows us to fetch, insert and modify data in Oracle databases,
and the generated webpages use Ajax techniques to give the user a quick response.
The resulting website is (as much as possible) cross-browser compatible.
Development is mainly done in Firefox (with Firebug), and is being tested on Internet Explorer later on.