You can try using "save for Web & Devices"
Some helpful links:
- [The Comprehensive Guide to Saving Images for the Web][1]The Comprehensive Guide to Saving Images for the Web
- (video) [Photoshop Top 40 #34 - Save for Web & Devices][2]Photoshop Top 40 #34 - Save for Web & Devices
I hope this helps. [1]: http://sixrevisions.com/web_design/comprehensive-guide-saving-images-for-web/ [2]: http://www.youtube.com/watch?feature=player_embedded&v=prbv_kbvdgQ