https://msdn.microsoft.com/en-us/library/ms533897(VS.85).aspx
The innerHTML property is read-only on the col, colGroup, frameSet, html, head, style, table, tBody, tFoot, tHead,title, and tr objects.
innerHTML on ie6-9
原文：http://www.cnblogs.com/ecalf/p/4872386.html
