A Jquery Function Extention boilerplate

jquery.function.js

// Jquery Function BoilerPlate for newbies
// 
//

// Surrounded by parentheses to allow anonymous founcitons on the inside
(function($){ // pass the jquery pseudo variable "$" into the function in order to create it's awesomeness. 

  $.fn.yourFucntion = function(userConfig) { 

    // please note, the "this" variable in the current scope will refer to the 
    // element or object that this function is called upon.

    // Set up a default Configuration
    var config = {
      varOne : 1,
      varTwo : 2,
      varThree 3
    };

    // if user configuration is supplied then save that into config
    // note: this uses jquery's extend function. 
    if (userConfig) $.extend(true, config, userConfig);

    // you must return the current object to allow jquery method chaining.
    return this;

  }; // End of new function Declaration

  // End of a Closure I think.
})(jQuery);