$scope.year_selected             = false;
     
     $scope.isstaff      = '';
     $scope.selected_branch_id      = '';
     $scope.selected_academic_id      = '';
     $scope.selected_course_parent_id = '';
     $scope.selected_course_id        = '';
     $scope.selected_year             = '';
     $scope.selected_semister         = 0;  
     $scope.selected_section_id         = 0;  
     $scope.courses_object            = [];
     $scope.total_semisters           = 0;
     $scope.semisters                 = [];
     $scope.have_semisters            = false;
     $scope.academic_years            = [];
     $scope.parent_courses            = [];
     $scope.courses                   = [];
     $scope.parent_selected           = false;
     $scope.years                     = [];
     $scope.result_data               = [];
    
   
    
     $scope.resetYears = function(){

         $scope.years           = [];
         $scope.selected_year   = null;
         $scope.current_year    = null;
         
         $scope.result_data = [];
         $scope.resetSemisters();
      }

      $scope.resetSemisters = function(){
      
        $scope.total_semisters = 0;
        $scope.semisters = [];
        $scope.have_semisters = false;
        $scope.current_semister = '';
        $scope.result_data=[];
      }

      $scope.resetCourses = function(){

         $scope.selected_course_id = '';
         $scope.courses         = [];
         $scope.resetYears();
      }

      $scope.resetParentCourses = function(){

        $scope.parent_courses  = [];
        $scope.selected_course_parent_id = '';
        $scope.course_parent_id = '';
        $scope.resetCourses();
      }

      $scope.resetAcademicYears = function(){

        $scope.academic_years  = [];
        $scope.selected_academic_id = '';
        $scope.academic_id = '';
        $scope.resetParentCourses();
      }


        $scope.resetFields = function(){

        $scope.selected_branch_id = '';
        $scope.resetAcademicYears();
        
      }


      $scope.getAcademicYears = function(branch_id)
      {
       
        if(branch_id=='')
          return;
         $scope.resetFields();

        $scope.selected_branch_id = branch_id;
          route = '