public boolean isEmptySpace()
	{
		int i = 0, j = 0;
		for(i = 0; i < 9; i++)
		{
			for(j = 0; j < 9; j++)
			{	
				if(entries[i][j].getText().equals(""))
				{
					System.out.println("isEmptySpace() returned false at i: " + i + " j: "+j); 
					return false;
				}
			}
		}
		return true;
	}