Reduce global VAR http://jsfiddle.net/LmTXD/1/

javascript-reduce-global-var.js

// BAD
var name = 'Jeffrey';
var lastName = 'Way';

function doSomething() {
  // do something
}
console.log(name); // Jeffrey -- or window.name

// BETTER
var DudeNameSpace = {
    name : 'Jeffrey',
    lastName : 'Way',
    doSomething : function() {
      return "Do something";
   }
};
// USAGE
$('#result').append('<div>' + DudeNameSpace.name + '</div>'); // Jeffrey
$('#result').append('<div>' + DudeNameSpace.doSomething() + '</div>'); // Do something