input: [Cookie Name] UserValidated UserChecksum [Purpose] 
output: Part of the sites single sign-on integration with FM World. If you have signed in via FM World and are initially not logged into BIFM (as these are different systems), the website will detect and authenticate you and supply a logged in status for the website by setting these cookies. These cookies are set when logged into FM World and subseequently accessing the BIFM website, they will expire as soon as you close your browser.