((( Help ))) – Help Me Using Multi Styles On 1 Page

HI, i want to provide a facility to my users choosing different styles, i use php includes and css on my file pages and i want to know what to do so users can choose different styles ( in this case css files are switched and cookies are saved in temp internet files ))
Thanks in advance
Answer #1
update the themes?
Answer #2
yeahh, give users an option to change the theme like you can do it in my yahoo my msn…
Answer #3
You should be able to do this in your admin control panel
Good luck
Answer #4
I dunno much about php, but if you update the themes/install new themes, users can change to what one they like the best