single sign on session project

Languages: PHP, HTML5, JAVASCRIPT DB: MYSQL I have an application that is split accross multiple servers, hosted by apache, served with php,html5, and javascript. Each of the servers share a common database. I need to implement a function that: 1 a very simple display of some random data, used only for a useful demo of the function you are developing 2 passes the cross domain issue. the application is hosted by multiple ip addresses. 3 allows a user to have multiple tabs open to the same application (where the each opened browser tab is on different ip addresses), from the same computer (client ip address per session is the same) 4 keeps track of the "session" data in a single mysql table (accessible by either server) 5 renews the "session" when there has been activity in the last minute, in that tab. this should renew the timeout timer or session accross all tabs 6 "logs out" all open tabs, simoultaounsly after inactivity of 5 minutes. 7 "log out" a user out of a previous session if they initiate a session from a new client ip When you apply for this job, please tell me the rough outline of the method you are proposing.