public function delete($id){
if(($this->data['users']->role != "admin")||$this->data['users']->role != "admin")){	
exit();
}
	if($this->data['users']->role == "admin"){	
		examsList::find($id)->delete();	
		return 1;
	}
		if($this->data['users']->role == "teacher"){		
		examsList::find($id)->delete();	
		return 1;
}
}