CodeIDE is an online programming interface for JavaScript, PERL, pascal, C, HTML, Javascript, mySQL and many more. You can write code in one language (the one you most know) and get the same code in another one. Is a simple way to write and publish code in multiple programming languages from one place. Written in Ajax, codeIDE is great if you are doing your fisrt steps in one of these languages.

This online tool also has a kind of command window where you can see the results of executing the code. I think it a very nice tool for the novice in programming.