js

var classicModulePattern = function(){
var privateVar = 1;
function privateFunction(){
alert('private');
}
return {
publicVar:2,
publicFunction:function(){
classicModulePattern.anotherPublicFunction();
},
anotherPublicFunction:function(){
privateFunction();
}
}
}();
classicModulePattern.publicFunction();

http://christianheilmann.com/2008/02/07/five-things-to-do-to-a-script-before-handing-it-over-to-the-next-developer/