Style Toggle Switcher

Hi guys ! I really need your help ! I want to provide some other colors to the template than the default one. So i need a CSS style toggle switcher. I mean something like this : http://themeforest.net/item/force-coming-soon-template/full_screen_preview/2738271 or like this : http://themeforest.net/item/soon/full_screen_preview/2760904 or like this: http://themeforest.net/item/mikmag-responsive-buddypress-and-woocommerce/full_screen_preview/2728331 . So my main question is : Is there a tutorial or sample on how to do such a thing ? Thank you very much !

I think there are some examples on how to make something like that but I think you pretty much can build it yourself. There is no much to it. Changing some css values with jquery isn’t that hard for a template maker
I saw many point to this: http://net.tutsplus.com/tutorials/javascript-ajax/jquery-style-switcher/

Yes it is easy, but i just wanted to have a starting ideea. Thank you very much for your reply !