--- rat/client/parameter.html	2022/05/24 16:23:04	1.87
+++ rat/client/parameter.html	2022/07/06 22:00:43	1.88
@@ -5,7 +5,7 @@
 The LearningOnline Network with CAPA
 Parameter Input Window
 //
-// $Id: parameter.html,v 1.87 2022/05/24 16:23:04 raeburn Exp $
+// $Id: parameter.html,v 1.88 2022/07/06 22:00:43 raeburn Exp $
 //
 // Copyright Michigan State University Board of Trustees
 //
@@ -401,8 +401,8 @@ function validateInterval() {
         for (var i=0; i<sform.donebutton.length; i++) {
             if (sform.donebutton[i].checked) {
                 if (sform.donebutton[i].value == '_done_proctor') {
-                    if ((sform.donebutton_proctorkey.value == '') || 
-                        (sform.donebutton_proctorkey.value == null)) {
+                    var keyval = sform.donebutton_proctorkey.value;
+                    if ((keyval == '') || (typeof(keyval) == 'undefined')) {
                         alert('Please enter a key for a proctor to enter when a student uses the "Done" button.');
                         return;
                     }
@@ -636,7 +636,8 @@ function lenienteval(newval) {
         }
         var patternRelWeight = /^\-?[\d.]+$/;
         var sform=choices.document.forms.sch;
-        if ((sform.lenientrelwt.length != 'undefined')  && (sform.lenientrelwt.length) != 'null') {
+        var relwtlength = sform.lenientrelwt.length;
+        if ((relwtlength != '') && (typeof(relwtlength) != 'undefined')) {
             for (var i=0; i<sform.lenientrelwt.length; i++) {
                 var relweight = sform.lenientrelwt[i].value;
                 relweight = relweight.replace(/^\s+|\s+$/g,'');
@@ -1095,7 +1096,7 @@ function draw() {
         if (pscat=='ip') {
             var currallow = new Array;
             var currdeny = new Array;
-            if ((svalue != '') && (svalue != null)) {
+            if ((svalue != '') && (typeof(svalue) != 'undefined')) {
                 var patternComma = /,/;
                 var patternAllow = /^([\[\]a-zA-Z\.\d\*\-]+)$/;
                 var patternDeny = /^\!([\[\]a-zA-Z\.\d\*\-]+)$/;
@@ -1188,7 +1189,7 @@ function draw() {
            var dlinklticdivsty = 'none';
            var dlinkltiddivsty = 'none';
            var dlinkmenusdivsty = 'none';
-           if ((svalue != '') && (svalue != null)) {
+           if ((svalue != '') && (typeof(svalue) != 'undefined')) {
                deeplinkvals = svalue.split(',');
                if (ltikeyRegExp.test(deeplinkvals[4])) {
                    linkprotectparts = deeplinkvals[4].split(':');
@@ -1285,7 +1286,7 @@ function draw() {
            choicewrite('</span><br />');
 
            var possmenus = new Array();
-           if ((pextra != '') && (pextra != null)) {
+           if ((pextra != '') && (typeof(pextra) != 'undefined')) {
                var lticRegExp = /^ltic_/;
                var ltidRegExp = /^ltid_/;
                var menusRegExp = /^menus_/;