I need a live notification script similar to facebooks and the one here on freelancer. I have a mysql database with a users table, questions table and answers table. When a user posts a question, other users are then able to answer the question, when a user answers a question I'd like the owner of the question to be notified "live" similar to how you receive notifications on facebook and on here. Using php/ajax/jquery I want a number to appear near to a notification icon, and when a user clicks it I want a box to appear showing what user answered what question with a link to it. I want all of this to be done "live" without the user having to refresh the page. I also want notifications for when users post replies to other users answers.