public static Admin readAdmin(String filepath) 
	{	
		Admin a = null;
		try 
		{ 			 
			FileInputStream fi = new FileInputStream(filepath); 
			ObjectInputStream si = new ObjectInputStream(fi);
			a = (Admin)si.readObject();			
			si.close(); 					
	    } 
		catch (IOException ex) 
		{ 
			System.out.println(ex); 
		} 
		catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} 
		return a;
	}