Get Local Minimum, Maximum Values

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	A	B	C	D
1	Date	Value
2	01/02/2009	30.53
3	01/05/2009	30.39	min	C3 and down: =IF(B3=MAX(B2:B4), "max", IF(B3=MIN(B2:B4), "min", ""))
4	01/06/2009	30.63	max
5	01/07/2009	29.73	min
6	01/08/2009	29.82	max
7	01/09/2009	29.19
8	01/12/2009	28.53	min
9	01/13/2009	28.58	max
10	01/14/2009	27.64	min
11	01/15/2009	27.66
12	01/16/2009	27.88	max
13	01/20/2009	26.41	min
14	01/21/2009	27.56	max
15	01/22/2009	27.14	min
16	01/23/2009	27.28