callback sample for Lorenz ;)

contactForm.js

var contactForm = function(){
	var submit = function(email, name, message, callback){
		validateForm(email, name, message, function(isValid){
			if(isValid){
				sendContent(email, name, message, function(succeeded){
					if(succeeded){
						showInfo(function(){
							callback("Message sent successfully");
						});
					}
				});
			}
		});
	}
	
	var validateForm = function(email, name, message, callback){
		//check if all required fields are filled and the text is valid (no attacks)
		callback(true);
	}

	var sendContent = function(email, name, message, callback){
		//try to send the form content
		callback(true);
	}

	var showInfo(callback){
		//open dialog box with success message or replace form with thanks text^^
		callback();
	}
}