gotoDetail() {
     this._router.navigate(['BottleDetail', { id: this.selectedBottle.id }]);
 }

 private onCancel() {
     this.router.navigate(['Root']);
     return;
 }

 .then((_) => router.navigateByUrl('/abc'))

 redirect(event) {
   event.preventDefault();
   if (!this.isLoggedIn()) {
     this.router.navigate('/');
   }
 }

	public onLogout(){
		this._gVS.setLoggedIn(false);
		this._gVS.setStudentId(0);
		this._router.navigate(['Login'])
	}

 chartOfAccounts() {
     this._router.navigate(['ChartOfAccounts']);
 }

	gotoLogin() {
		this._router.navigate(['Dashboard']);
	}

 .subscribe(() => {
   this.router.navigate(['/Home']);
 }, this.handleError)

 close() {
     this.router.navigate(['/PigeonList']);
 }

 goToDetail(login: string) {
     let link = ['UserDetails', { login: login }]
     this._router.navigate(link);
 }