anchor.diff:  									}
   									qt.setLocale(themeDisplay.getLocale());
   									Document document = null;
  -									if (!hasPermissionAccessCourseFinished && Validator.isNotNull(learningTry.getTryResultData())) {
  +									if (!hasPermissionAccessCourseFinished && Validator.isXml(learningTry.getTryResultData())) {
   										document = SAXReaderUtil.read(learningTry.getTryResultData());
   									}
   									sb.append(qt.getHtmlView(question.getQuestionId(), themeDisplay, document));
  
positive.code: 							}
  						%>
  						
  							<!-- De momento se comenta la numeracin -->
  							<!-- 			<script type="text/javascript"> -->
  							<!--  				AUI().ready(function(A) { -->
  							<!--  					//Numeramos las preguntas -->
  
negative.code: 						if (useBank){
  							
  							LearningActivity bankActivity;
  							if( Validator.isNotNull(learningTry) && Validator.isXml(learningTry.getTryResultData()) ){
  								String tryResultData = learningTry.getTryResultData();
  								Document docQuestions = SAXReaderUtil.read(tryResultData);
  								List<Element> xmlQuestions = docQuestions.getRootElement().elements("question");
  