gistfile1.js

$.widget('mod.hoge', {
	_create: function(){
		alert('this method will be called first');
		this.method1();
		this.method2();
		this.method3();
	},
	method1: function(){
		...
	},
	method2: function(){
		...
	},
	method3: function(){
		...
	}
});

// do it
$(function(){
	$('.mod-hoge').hoge(); // apply hoge widget, baby!
});