Mr. P said:Not so fast...I was wrong. This is an Airbus A320-232.
I noticed the winglets after I posted.
Compare....
http://www.airliners.net/search/photo.search?aircraftsearch=Airbus A320-232&distinct_entry=true
I've been on Alaska Airlines' 737's which also have the winglets ..

http://www.airliners.net/open.file?...P&photo_nr=11&prev_id=1037923&next_id=1037915