Mouse: better check for not IE9 or greater in case mode was set by X-UA-Compatible. See http://msdn.microsoft.com/en-us/library/cc196988%28VS.85%29.aspx for more info. Fixes #5370 - All drag & drop events fail in IE9. Thanks xirzec.
Mouse: better check for not IE9 or greater in case mode was set by X-UA-Compatible. See http://msdn.microsoft.com/en-us/library/cc196988%28VS.85%29.aspx for more info. Fixes #5370 - All drag & drop events fail in IE9. Thanks xirzec.

GrayYoung/jQuery.UI.Extension,GrayYoung/jQuery.UI.Extension