My programming exposure includes PHP, MySql, Java, JavaScript, CGI, and others including HTML, CSS, DHTML, etc. The vast majority of my website building and programming is open source based. The hosting platform I've used and have experience with is Linux based.
I have also written several programs in JavaScript that are distributed throughout the internet. I've been programming in JavaScript and various other web programming languages since 1995.
Here are a few JavaScript programs I have written.

JBAJSENcrypt
JBAJSENcrypt is an encryption and decryption program written in javascript. There is a web page encode section also.
AlpMcalc
Alpmcalc is a rules based calculator written with no JS methods. The methods used are created from JS code logic and math rules. Along with simple math Alpmcalc also incorporates advanced math functions and can be used to do large number calculations.

WordMite
WordMite is a word scrabble game written with Javascript, CSS, and DHTML.

JSCSSslot
JSCSSslot is a virtual slot machine written with advanced Javascript, CSS, DHTML, and includes sound, bonus rounds, and jack pot. Pay table is included.