Index: lams_central/src/java/org/lamsfoundation/lams/webservice/LearningDesignSVGServlet.java
===================================================================
RCS file: /usr/local/cvsroot/lams_central/src/java/org/lamsfoundation/lams/webservice/LearningDesignSVGServlet.java,v
diff -u -r1.7.2.3 -r1.7.2.4
--- lams_central/src/java/org/lamsfoundation/lams/webservice/LearningDesignSVGServlet.java	28 Sep 2016 15:13:38 -0000	1.7.2.3
+++ lams_central/src/java/org/lamsfoundation/lams/webservice/LearningDesignSVGServlet.java	20 Dec 2016 10:40:31 -0000	1.7.2.4
@@ -39,6 +39,7 @@
 import org.lamsfoundation.lams.integration.service.IntegrationService;
 import org.lamsfoundation.lams.learningdesign.service.ILearningDesignService;
 import org.lamsfoundation.lams.learningdesign.service.LearningDesignService;
+import org.lamsfoundation.lams.lesson.service.ILessonService;
 import org.lamsfoundation.lams.util.CentralConstants;
 import org.lamsfoundation.lams.util.Configuration;
 import org.lamsfoundation.lams.util.ConfigurationKeys;
@@ -55,6 +56,8 @@
     private static IntegrationService integrationService = null;
 
     private ILearningDesignService learningDesignService = null;
+    
+    private ILessonService lessonService = null;
 
     @Override
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
@@ -64,7 +67,11 @@
 	    String hashValue = request.getParameter(CentralConstants.PARAM_HASH_VALUE);
 	    String username = request.getParameter(CentralConstants.PARAM_USERNAME);
 
-	    Long learningDesignId = WebUtil.readLongParam(request, CentralConstants.PARAM_LEARNING_DESIGN_ID);
+	    // in case lsId parameter is provided - get learningDesignId from the responsible lesson, otherwise try to get
+	    // it from a request as "ldId" parameter
+	    Long lessonId = WebUtil.readLongParam(request, CentralConstants.PARAM_LESSON_ID, true);
+	    Long learningDesignId = (lessonId == null) ? WebUtil.readLongParam(request, CentralConstants.PARAM_LEARNING_DESIGN_ID) : 
+		lessonService.getLessonDetails(lessonId).getLearningDesignID();
 
 	    if (serverId == null || datetime == null || hashValue == null || username == null) {
 		String msg = "Parameters missing";
@@ -129,5 +136,8 @@
 
 	learningDesignService = (ILearningDesignService) WebApplicationContextUtils
 		.getRequiredWebApplicationContext(getServletContext()).getBean("learningDesignService");
+	
+	lessonService = (ILessonService) WebApplicationContextUtils
+		.getRequiredWebApplicationContext(getServletContext()).getBean("lessonService");
     }
 }
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