	SUBROUTINE PURGE_USER_VAR( uvar )

*
*
*  This software was developed by the Thermal Modeling and Analysis
*  Project(TMAP) of the National Oceanographic and Atmospheric
*  Administration''s (NOAA) Pacific Marine Environmental Lab(PMEL),
*  hereafter referred to as NOAA/PMEL/TMAP.
*
*  Access and use of this software shall impose the following
*  obligations and understandings on the user. The user is granted the
*  right, without any fee or cost, to use, copy, modify, alter, enhance
*  and distribute this software, and any derivative works thereof, and
*  its supporting documentation for any purpose whatsoever, provided
*  that this entire notice appears in all copies of the software,
*  derivative works and supporting documentation.  Further, the user
*  agrees to credit NOAA/PMEL/TMAP in any publications that result from
*  the use of this software or in any product that includes this
*  software. The names TMAP, NOAA and/or PMEL, however, may not be used
*  in any advertising or publicity to endorse or promote any products
*  or commercial entity unless specific written permission is obtained
*  from NOAA/PMEL/TMAP. The user also understands that NOAA/PMEL/TMAP
*  is not obligated to provide the user with any support, consulting,
*  training or assistance of any kind with regard to the use, operation
*  and performance of this software nor to provide the user with any
*  updates, revisions, new versions or "bug fixes".
*
*  THIS SOFTWARE IS PROVIDED BY NOAA/PMEL/TMAP "AS IS" AND ANY EXPRESS
*  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
*  ARE DISCLAIMED. IN NO EVENT SHALL NOAA/PMEL/TMAP BE LIABLE FOR ANY SPECIAL,
*  INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
*  RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
*  CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION, ARISING OUT OF OR IN
*  CONNECTION WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE. 
*
*
* eliminate all stored mrs for the given user defined variable

* programmer - steve hankin
* NOAA/PMEL, Seattle, WA - Tropical Modeling and Analysis Program
* written for VAX computer under VMS operating system
*
* revision 0.0 - 2/23/87
* revision 0.1 - 9/30/87 - added mr_perm_prot
* V200:  6/9/89 - deleted variables flagged in mr_protected
*        2/12 *kms* Add E and F dimensions (use nferdims in tmap_dims.parm)
* V740: 1/18 *acm* for issue 1854, protection status temporarily reset 
*             for curvi-coord plot with /SET

        IMPLICIT NONE
        include 'tmap_dims.parm'
	include 'ferret.parm'
	include 'xvariables.cmn'

* calling argument declaration:
	INTEGER	uvar

* internal variable declarations:
	INTEGER	mr

	DO 100 mr = 1, max_mrs
	   IF ( mr_protected( mr ) .EQ. mr_deleted ) GOTO 100
	   IF ( mr_protected( mr ) .LT. mr_keep_flag ) GOTO 100

	   IF ( mr_variable ( mr ) .NE. uvar
     .	   .OR. mr_category ( mr ) .NE. cat_user_var ) GOTO 100

	   IF (  mr_protected( mr ) .NE. mr_not_protected
     .	   .AND. mr_protected( mr ) .NE. mr_perm_protected )
     .		STOP 'var prot err --> UVAR'

	   CALL DELETE_VARIABLE( mr )

 100	CONTINUE

	RETURN
	END

