using chameleon theme Calendar pop up in Reindeer theme


I would like to use style for calendar popup of chameleon theme for one of my views. All other views require to use Reindeer theme.
I copied the style classes under Calendar panel. inside my style sheet but Reindeer overrides my classes. I dont want to use the images
which are there for previous-month, previous-year, next-month, next-year of Reindeer theme.
How can i achieve this.