MG SRC="../../docImages/ix.gif" BORDER="0" ALT="x"></A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="../../UI/VisClass/VisClass_17.htm#IX_Documents:layers in">layers in <IMG SRC="../../docImages/ix.gif" BORDER="0" ALT="x"></A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="../../Intro/Overview/Overview_17.htm#IX_Documents:management">management <IMG SRC="../../docImages/ix.gif" BORDER="0" ALT="x"></A><BR>
&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="../../UI/VisClass/VisClass_12.htm#IX_Documents:visible objects in;Objects:non-discardabl