Need a chat integration for codeigniter webiste

Need a chat integration for codeigniter webiste

Cancelled

Job Description

I use codeigniter to write a website. Now I need a chat feature like support live chat.
That chat system will save all messages on our current admin page. So admin can check again if he needs.
We don't need the users are members, just need to chat whenever admin is online.

So anyone can do it, please give me a quote for it...