--- loncom/homework/structuretags.pm	2014/05/18 02:13:45	1.519
+++ loncom/homework/structuretags.pm	2014/09/14 15:21:43	1.520
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.519 2014/05/18 02:13:45 raeburn Exp $
+# $Id: structuretags.pm,v 1.520 2014/09/14 15:21:43 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -254,6 +254,32 @@ function image_response_click (which, e)
     input_element.value = click;
     img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
 }
+
+var submithandled = 0;
+
+$(document).ready(function(){
+    $(document).delegate('form :submit', 'click', function( event ) {
+        if ( $( this ).hasClass( "LC_hwk_submit" ) ) {
+            var buttonId = this.id;
+            if (submithandled == 0) {
+                submithandled = 1;
+                $( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
+                                          "color": "black","padding": "2px"}) ;
+                $( ".LC_status_"+buttonId ).hide();
+                if (( $(this.form).id == "LC_page" ) && ($('input[name="all_submit"]').length )) {             
+                    if (( "#"+buttonId+"_pressed" ).length) {
+                        $( "#"+buttonId+"_pressed" ).val( "1" );
+                    }
+                }
+                $(this.form).submit();
+                $( this ).attr( "disabled", true);
+                event.preventDefault();
+                return true;
+            }
+        }
+    });
+});
+
 // ]]>
 </script>
 JS