Very basic controller/action based on a page ID

gistfile1.js

// camelcase body ID e.g. #page-home => home, #page-contact-us => contactUs
var action = $('body').attr('id')
	.replace(/^(page-)/, '')
	.replace(/^([a-z]{1})/, function(letter) { return letter.toUpperCase(); })
	.replace(/-([a-z]{1})/, function(letter) { return letter.replace(/-/,'').toUpperCase(); });

var Controller = {
	// #page-home
	home: function() {
		...
	}
	// #page-contact-us
	contactUs: function() {
		...
	}
}

if (typeof Controller[action] != 'undefined') {
	Controller[action]();
}