Thanks @kgscott for explaining what it really is..
@traq thanks for suggesting a way to break it and also why its totally useless to do to
About the person who is using it, he is a blogger who blogs on Google’s Blogger , I suppose the only reason why he obfuscated his code was to make sure no other Blogger blogs copies it (its general practice in Blogger’s bloggers to copy code from others and give no real attribution, a safeguard mechanism of a kind)
I understand now why it took so much time to load his scripts
In case you want to see ,check his website, nearly all his widgets code is obfuscated www dot bloggeritems dot com