login(){

  //if(this.username==this.uname && this.password==this.pwd){
  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");
  }
})
}
}