doing more CSS formatting, in a more 'right' way. themizerindex changes:

-long CSS put in file. sorry another http request :P looked so disorganized
-themizerindex HTML updated but not complete.
-@tyxchen should particularly look for notes to him in comments
try-it UI edits are half done. notification js has been consolidated; untested if it's broken.

-themizer() has been turned into sliderSidebar() and used for Try-It
-themizer.css has been renamed to slidersidebar.css
-try-it header messiness has been removed and the mess dumped into tryit.php
-I seriously went through script.js and reorganized quite a bit
-@tyxchen should continue to look for notes in comments to respond to
-@tyxchen should also make sure I'm not breaking any js! XD