$(function() {
    $("a#single_image").fancybox();
        setInterval(function(){
                if(!window.achievement_in_work){
                    resee_materials()
                }
            }, 200000);
});

function resee_materials() {
    for(var index in window.materials){
        check_jactive(window.materials[index]);
    }
}

function check_jactive(id) {
    var url = location.protocol + '//'+ location.host + '/journals/';
        if (window.material_type == 'H'){
            url += 'check_exists_jhomework/'
        } else if (window.material_type == 'E'){
            url = 'check_exists_jexam/'
        }
        $.ajax({
          type: 'GET',
          url: url,
          data: {'id': id},
          success: function(data){
              if (data['code'] != '1'){
                  hide_element(id)
              }
          }
        });
}

function hide_element(id) {
    $('a[name='+id+']').fadeOut('slow');
}