// Custom validator:
	// https://auth0.com/blog/2016/05/03/angular2-series-forms-and-custom-validation/
	// http://stackoverflow.com/questions/31788681/angular2-validator-which-relies-on-multiple-form-fields
	// http://stackoverflow.com/questions/35474991/angular-2-form-validating-for-repeat-password
	constructor(private authService:AuthService, private error:ErrorService, private viewCtrl:ViewController, fb:FormBuilder, params:NavParams, private toaster:Toaster) {
		// this.password = params.get('password');
		this.email = params.get('email');
		this.changePasswordForm= fb.group({
			oldPassword: ['', Validators.required],
			newPassword: ['', Validators.required],
			confirmPassword: ['', Validators.required],
		}, {validator: matchingPasswords('newPassword', 'confirmPassword')});
	}

 constructor(private viewCtrl: ViewController, private params: NavParams) {
   this.representation = params.get('representation');
 }

 constructor(navParams: NavParams, viewCtrl: ViewController,_myLectureService: LectureService) {
     this.viewCtrl = viewCtrl;
     this._myLectureService = _myLectureService;
     this.lecture = new Lecture();
     this.lecture.module_idmodule = navParams.get('idmodule');
 }

 constructor(public navParams: NavParams) {
     this.patient = navParams.get('selectedPatient');
 }