public static int indexOf(Object[] arr, Object obj)
	{
		if (obj == null)
		{
			for (int c = 0; c < arr.length; c++)
			{
				if (arr[c] == null)
				{
					return c;
				}
				
			}
			
		}
		else
		{
			for (int c = 0; c < arr.length; c++)
			{
				if (obj.equals(arr[c]))
				{
					return c;
				}
				
			}
			
		}
		
		return -1;
	}