Index: lams_tool_notebook/web/pages/learning/runOffline.jsp
===================================================================
diff -u -r896248d87ee3eb2da93ba7a9f11ca2de11eb4040 -r146b988700da5ed2e016388383b0e648c23d1a8a
--- lams_tool_notebook/web/pages/learning/runOffline.jsp	(.../runOffline.jsp)	(revision 896248d87ee3eb2da93ba7a9f11ca2de11eb4040)
+++ lams_tool_notebook/web/pages/learning/runOffline.jsp	(.../runOffline.jsp)	(revision 146b988700da5ed2e016388383b0e648c23d1a8a)
@@ -1,5 +1,11 @@
 <%@ include file="/common/taglibs.jsp"%>
 
+<script type="text/javascript">
+	function disableFinishButton() {
+		document.getElementById("finishButton").disabled = "disabled";
+	}
+</script>
+
 <div id="content">
 	<h1>
 		${notebookDTO.title}
@@ -14,12 +20,12 @@
 	</p>
 
 	<c:if test="${mode == 'learner' || mode == 'author'}">
-		<html:form action="/learning" method="post">
+		<html:form action="/learning" method="post" onsubmit="disableFinishButton();">
 			<html:hidden property="dispatch" value="finishActivity" />
 			<html:hidden property="toolSessionID" />
 
 			<div align="right" class="space-bottom-top">
-				<html:submit styleClass="button">
+				<html:submit styleClass="button" styleId="finishButton">
 					<fmt:message>button.finish</fmt:message>
 				</html:submit>
 			</div>