this.loginHttpService.login(this.username,this.password).subscribe((registered:IRegister[])=>{
      if(registered.length==1){
        alert("Login Successfull!!");
      this._router.navigate(['/account']);
      }



    else if(this.username==null && this.password==null){
      alert("Please fill the credintials");
    }
    else if(this.username==null && this.password==this.pwd){
      alert("Please enter the username");
    }
    else if(this.username==this.uname && this.password==null){
      alert("Please enter the password");
    }

   else{
    alert("Invalid Login");
    }
  })
  }
  }