-# please polish the following line if you know how, same in view destroy
var errorDiv = $('<div class="alert fade in alert-error"><a class="close" data-dismiss="alert" href="#">#{t('ui.marks.close').html_safe}</a></div>');

errorDiv.append(document.createTextNode('#{j(fail_msg)}'));
$('div.container-fluid').prepend(errorDiv);