Offline / Online button

I have a website where I need an ONLINE / OFFLINE icon. In short, if the admin login to the admin area and click ONLINE the OFFLINE icon on the website change to an ONLINE icon so users can see that the admin is now online. Along with the ONLINE icon there is a link to the chat page. In other words the function of this is when the admin is online she goes to the admin area and click “IM ONLINE” and then the image on all pages where the code for the OFFLINE/ONLINE icon is placed change from OFFLINE to ONLINE, so user can see that the admin is online and they can go chat with her in the chat room. There should also be a text that say: IM OFFLINE AT THE MEMENT, if offline and when online: IM ONLINE COME CHAT WITH ME – CLCIK HERE a long with the OFFLINE/ONLINE icon It should work this way: 1. In the admin area of the website (already working CMS system I have created!): [login to view URL] under the menu: "Interactive" there will be a page, when you click on “Chat room” where the girl can change the status from OFFLINE to ONLINE. 2. On the website [login to view URL], where I place the code for the OFFLINE/ONLINE icon it will say IM OFFLINE AT THE MEMENT and a image will show OFFLINE. When the girl in the admin area click on “GO ONLINE” the text and image on the website will change from text “IM OFFLINE AT THE MEMENT,” to ONLINE COME CHAT WITH ME – CLCIK HERE and the image will change from offline to online. 3. When admin don’t want to chat anymore she goes to the admin area and change the status from ONLINE to OFFLINE. And it will change from ONLINE to OFFLINE on the website where the code for the script is placed So what I'm looking for is a php page where the option for the admin to going ONLINE and when admin wants to go OFFLINE she click on GO OFFLINE When clicking the OFFLINE or ONLINE in admin area it change on the website as described above. It needs to be made that way that the codes that show the OFFLINE/ONLINE on the website can be placed on any given page on the website and will then work - also in subfolders fx main/sub/. The existing CMS uses a MySQL database and is build in php. All php pages on the website referrer to a config file so it's also possible to add some code that that php file so the script on any given page can get the info from the config file.