[1] expando Property (attribute, document) (2007-02-18 01:37:11 +09:00 版) http://msdn.microsoft.com/workshop/author/dhtml/reference/properties/expando.asp

[2] Content Attributes and DOM Expandos Are No Longer Connected (Windows) ( (2013-07-01 03:50:36 +09:00 版)) http://msdn.microsoft.com/ja-jp/library/ie/gg622931(v=vs.85).aspx