#hand_b {
  width:31px;
  height:31px;
  background-image: url(http://google.com/mapfiles/ms/t/Bsu.png);
}
#hand_b.selected {
  background-image: url(http://google.com/mapfiles/ms/t/Bsd.png);
}

#placemark_b {
  width:31px;
  height:31px;
  background-image: url(http://google.com/mapfiles/ms/t/Bmu.png);
}
#placemark_b.selected {
  background-image: url(http://google.com/mapfiles/ms/t/Bmd.png);
}