Index: lams_monitoring/web/gate/gateInfo.jsp
===================================================================
diff -u -r2f6c67e31d0c35ddcfb8b4ae9f53d162c6472f4c -r2e5d858e9dd95ddc9aa092c307b2039c9cb62930
--- lams_monitoring/web/gate/gateInfo.jsp	(.../gateInfo.jsp)	(revision 2f6c67e31d0c35ddcfb8b4ae9f53d162c6472f4c)
+++ lams_monitoring/web/gate/gateInfo.jsp	(.../gateInfo.jsp)	(revision 2e5d858e9dd95ddc9aa092c307b2039c9cb62930)
@@ -39,7 +39,7 @@
 		<c:if test="${not GateForm.map.readOnly}"> 
 			<c:if test="${not GateForm.map.gate.gateOpen}" >
 				<html:form action="/gate?method=openGate" target="_self">
-					<input type="hidden" name="activityId" value="${param.activityID}" />
+					<input type="hidden" name="activityId" value="${GateForm.map.activityId}" />
 					<p><html:submit styleClass="button"><fmt:message key="label.gate.open"/></html:submit></p>
 				</html:form>
 			</c:if>