I'm building a site that is hosted on my server which is used as a captive portal for local network of computers. on my index page ( page they get redirected to after connecting to network ) I have a button which "authentificates" users by storing their mac address and redirecting them to facebook likebox page and allowing them google ( allowing them to surf freely ). My question is, can I implement the combination of that "allow access" button with facebook like button so I can store their mac and get a like at the same time by eliminating 2 separate buttons and using only one...