Walmart advertisements at Walmart in San Jose, Calif., Wednesday, Aug. 13, 2008. (AP Photo/Paul Sakuma)
Walmart advertisements at Walmart in San Jose, Calif., Wednesday, Aug. 13, 2008. (AP Photo/Paul Sakuma) ASSOCIATED PRESS
Walmart advertisements at Walmart in San Jose, Calif., Wednesday, Aug. 13, 2008. (AP Photo/Paul Sakuma) ASSOCIATED PRESS