This will create a select menu of css options that will work for ALL pages of your site
The menu form will also remember the last setting used
The options used are just for demo you will have to set your own and create your own css files
NOTE This will have no effect in the Xtgem preview window or frame
FORM XTSCRIPT
Then add this xtscript to your _headtags file
Don't forget to set the address of your css folder