caption of sideway figure

[Hai-Ru Chang]

Hello,
      I imported a picture in landscape mode.  How can I put the figure caption 
also put in proper position (caption in landscape instead of portrait mode)? 
Thanks!
      
      
Dr. Hai-Ru Chang
Duane Physics #D322
311-UCB
Program in Atmospheric and Oceanic Sciences
Boulder, CO 80303
Tel: 303-492-0544