using filter without refreshing the page in survey report

main/mySpace/index.php

@@ -701,7 +701,7 @@ if ($is_platform_admin && in_array($view, array('admin')) && $display != 'yourst
                     var sessionId   = $("#session_name").val();
                     var courseId    = $("#course_name").val();
                     var surveyId    = $("#survey_name").val();
-                    window.location = "'.$self.'?view=admin&display='.$display.'&session_id="+sessionId+"&course_id="+courseId+"&survey_id="+surveyId;
+                    //window.location = "'.$self.'?view=admin&display='.$display.'&session_id="+sessionId+"&course_id="+courseId+"&survey_id="+surveyId;
                 });
                 ';
         }
@@ -837,6 +837,11 @@ if ($is_platform_admin && in_array($view, array('admin')) && $display != 'yourst
             $("#course_name").on("change", function() {
                 var sessionId = $("#session_name").val();
                 //select2("#course_name", "' .  $ajax_path . 'course.ajax.php?a=search_course&session_id=" + sessionId);
+                if (typeof $("#survey_name") == "object") {
+                    var courseId = $("#course_name").val();
+                    var surveyId = $("#survey_name").val();
+                    select2("#survey_name", "'.$ajax_path . 'course.ajax.php?a=search_survey_by_course&session_id=" + sessionId + "&course_id=" + courseId + "&survey_id=" + surveyId);
+                }
             });
             ' . $script . '
         });