yeah, what you could do is put comments everyso often in your html like
<!-- austin's -->
<!-- flashanims.com -->
so if someone takes the code they take the comments too. then you can spot if someone totally copied your site.
the comments can be deleted but you should at least right before the head section put a disclaimer. like mine for example.
<!-- all code is copyright austin pray, flashanims.com
if you would like to take a snippet of code, please contact firstname.lastname@example.org
or link to flashanims.com instead. do not take any layout aspects without first contacting me at the
email address above. -->
<!-- website group code 512 -->
it atleast makes the people think for half a second about not taking it
all this assuming that the reason you want to hide your code from stealers...