[kadabrik]

Подскажу

$.ajax(
'/url/to_script',
{
  type: 'post',
  dataType: 'json',
  sucsess: function(response)
  {
    var result = response;
    var txt = '';
    txt += 'Done.<br/>';
    txt += 'Processed: ' + result.processed + '<br/>';
    txt += 'Added: ' + result.added + '<br/>';
    txt += 'Failed: ' + result.failed + '<br/>';
    txt += 'Duplicated: ' + result.duplicated + '<br/>';
    txt += 'Duplicated codes list: <i>' + result.duplicated_codes + '</i>';
    Y$('generator_result').innerHTML = txt;
  },
  error: function()
  {
    Y$('generator_result').innerHTML = 'Upload failed! Error: ' + e;
  }
});