--- loncom/homework/structuretags.pm	2010/12/20 18:33:20	1.481
+++ loncom/homework/structuretags.pm	2010/12/31 00:58:10	1.482
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.481 2010/12/20 18:33:20 raeburn Exp $
+# $Id: structuretags.pm,v 1.482 2010/12/31 00:58:10 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -168,28 +168,31 @@ sub file_delchk_js {
     return <<"ENDSCRIPT";
 <script type="text/javascript">
 function file_deletion_check(formname) {
-    var str = new RegExp("^HWFILE.+_delete\$");
-    var delfilecount = 0;
     var elemnum = formname.elements.length;
     if (elemnum == 0) {
         return true;
     }
-    for (i=0; i<formname.elements.length; i++) {
+    var str = new RegExp("^HWFILE.+_delete\$");
+    var delboxes = new Array();
+    for (var i=0; i<formname.elements.length; i++) {
         var id = formname.elements[i].id;
         if (id != '') {
             if (str.test(id)) {
                 if (formname.elements[i].type == 'checkbox') {
                     if (formname.elements[i].checked) {
-                        delfilecount ++;
+                        delboxes.push(id);
                     }
                 }
             }
         }
     }
-    if (delfilecount > 0) {
+    if (delboxes.length > 0) {
         if (confirm("$delfilewarn")) {
             return true;
         } else {
+            for (var j=0; j<delboxes.length; j++) {
+                formname.elements[delboxes[j]].checked = false;
+            }
             return false;
         }
     } else {