Javascript for the rotten old timers

What is Javascript

It is a scripting language. To perform UI interaction, it should be combined with CSS.
In Javascript, you use either the id or the class of an HTML element and you bind it with the $character.

Good place to start

Modern Javascript programming starts with the callbacks. Callbacks writing had been drastically improved with the comming of JQuery. So, it is the right place to start beginning by learning simple JQuery.
  
http://www.w3schools.com/jquery/

Debugging JAVASCRIPT

Add traces to debug : console.log();


Shortcut for Firefox
Install the Firebug plugin
Ctrl+Maj+I

Shortcut for Chrome
Ctrl+Maj+I

Shortcut for Internet Explorer
F12