Hi cipriani, if you are in the U.S. you don't need to do anything to make it legitimate. Your work is copyrighted as soon as it is created. http://www.copyright.gov/circs/circ1.html#noc Registering the copyright does give you additional protection, but isn't necessary. http://www.copyright.gov/help/faq/faq-general.html#register http://www.copyright.gov/help/faq/faq-digital.html#website The whole FAQ is here: http://www.copyright.gov/help/faq/ If you aren't in the U.S., you need to look for information from your country's copyright office.
This is forum is COPYWRITING-related, not copyright. Please post in the correct forum, up right here: http://forums.digitalpoint.com/forumdisplay.php?f=44 And learn more about infractions for wrong posting like this: http://forums.digitalpoint.com/showthread.php?t=216611 *sigh*
Just remember that your entire site (meaning each individual element) isn't under copyright, only those elements that are eligible for copyright in the first place are protected.