Created Issue: HTMLEditor shows 111 on tool button click when focus out [27351]

The HTMLEditor control prints "111" on the document when clicks a tool button when the focus out from the editor.

1. Go to http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/HTMLEditor/HTMLEditor.aspx in IE9
2. Click outside the editor
3. Click Decrease indent button

The same message prints in various situations.