Closes the conversation.
Script: http://www.wlmessenger.net/api/3.5/loader.js
Feature: Messenger.Core
Namespace:
Microsoft.Live.Messenger
Windows Live Messenger Web Toolkit
Supported in: 3.5, 3.1, 3.0, 2.5, 2.0, 1.0
Internet Explorer 8.0, Internet Explorer 7.0, Internet Explorer 6.0, Firefox 3.5, Firefox 3.0, Firefox 2.0, Firefox 1.5, Chrome 2.0, Chrome 1.0, Safari 4.0, Safari 3.0