.folderClosed{float:left;width:18px;height:18px;background:url("../images/folder_closed.gif") no-repeat;}.folderOpen{float:left;width:18px;height:18px;background:transparent url("../images/folder_open.gif") no-repeat;}.document{float:left;width:18px;height:18px;background:transparent url("../images/gallery.gif") no-repeat;}