conversation message

Notification about a new Conversation message in a pop-up window (with sound), by Ajax trigger (not by timer). /account/preferences -> Show popup conversation alert (on/off)

Hello guys, unfortunately I have some troubles answering conversations on my forum since I get a lot. So I'm looking for a method to contact all unread conversation with a template message and mark them as read. Is there any option? How could I do this? Best regards, CabCon.