Copying the DOMImplIE6 setOpacity implementation into DOMImplIE8 because IE8 does not support the opacity style attribute. I added a runtime check to differentiate IE8, which only supports the alpha filter, from IE9, which supports opacity.

Review at http://gwt-code-reviews.appspot.com/1211801

Review by: pdr@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9434 8db76d5a-ed1c-0410-87a9-c151d255dfc7
1 file changed