title: Real Time Visitor Chat Pop Up?
body: <p>Are there any PHP/JS based tools that allow me to intitiate a chat invitation to a live visitor on a site, like they do on Bank sites and Salesforce? </p>
  
  <p>EDIT: LiveZilla could work, but I'm a Mac user, so I'd like to not have to run it via a VM. Is there any purely web based or mac-based solution?</p>