knows!) However, if we set a background on the div, it works -- but not
if that background is transparent. It has to have some thing. So, if
we're in IE, we use our handy dandy notebook!, er, blank.gif, to populate
a background so that the EventPane will work.
If someone can fix this, please do.
git-svn-id: http://svn.openlayers.org/branches/openlayers/2.0@1332 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf