gistfile1.js

$.fn.myPlugin = function(args) {
	// set defaults for the plugin
	var defaults = {
		foo : 'bar'
	},
	
	// override those defaults with user-provided args
	settings = $.extend(defaults, args),

	// define functions for stuff you'll do a lot
	myFunction = function() {
		// do stuff 
	};

	// return the element(s) the plugin was called on, 
	// after doing stuff to them
	return this.each(function() {
		// you can use any of the variables you defined above here
	});
};