use a javascript namespace

example_namespace_usage.js

//uses the following syntax to create an object with private properties 
// and functions.  You expose the properties and functions you need publicly in the 
// return object.... The immediate function allows us to have private scope for
// certain things

// Create a new namespace
CHATHAM.namespace('CHATHAM.utils.gridmgr');

CHATHAM.utils.gridmgr = (function(){
  function doSomethingPrivately() { 
    return "I am private";
  }
  
  function doItPublic() {  
    return "I am public";
  }
  return {
    doIt: doItPublic
  };

}());

//uses the following syntax to create an function on the namespace 
//The immediate function allows us to have private scope for
//certain things

// Create a new namespace
CHATHAM.namespace('CHATHAM.utils.Grid');

CHATHAM.utils.Grid = (function(global){
  // dependencies
  var grdMgr = CHATHAM.util.gridmgr,
      Constr;

  Constr = function { 
      // add properties etc
  };

  Constr.prototpye = {
    constructor: CHATHAM.util.Grid, // could be helpful to know the namespace
    version: "0.5" // in future we could add versions to our stuff
  };

  // return the contructor
  // to be assigned to the namespace
  return Constr;
})(this);  //we can make this module self contained by passing in the global 'this'
// context namespace and assigning it to global