Index: /issm/trunk/src/m/classes/public/modelextract.m
===================================================================
--- /issm/trunk/src/m/classes/public/modelextract.m	(revision 1255)
+++ /issm/trunk/src/m/classes/public/modelextract.m	(revision 1256)
@@ -19,14 +19,12 @@
 %   See also: EXTRUDE, COLLAPSE
 
-%some checks on list of arguments
+%some checks
 if ((nargin~=2) | (nargout~=1)),
 	help modelextract
 	error('modelextract error message: bad usage');
 end
-if strcmpi(md.type,'3d'),
+if strcmpi(md1.type,'3d'),
 	error('modelextract error message: only 2d model supported yet. Use BasinConstrain instead');
 end
-
-
 
 %first