$.fn.extend({
  translate: function(sourceLang, targetLang) {
    if($(this).text().trim().length < 1 || !isNaN(parseInt($(this).text().trim())) || sourceLang == targetLang)
      return;

    let $function = this;

    $($function).each(function() {
      let $each = this;
      $.ajax({
        url: 'https://translate.yandex.net/api/v1.5/tr.json/translate',
        method: 'GET',
        dataType: 'JSONP',
        crossDomain: true,
        data: {
          key: /* my-secret-key */,
          text: $($each).text(),
          lang: sourceLang + '-' + targetLang
        },
        success: function(response) {
          try {
            if(response.code !== 200)
              throw "Response: " + response.code;
            $($each).text(response.text[0])
          } catch(error) {
            console.error('Translation error on element: ', $($function).text());
            console.error('Message returned by the server:', error);
          }
        },
        error: function(xhr, status, error) {
          console.error('Translation error on element: ', $($function).text());
          console.error('Message returned by the server:', xhr.responseText);
        }
      });
    });
  }
});

$(document).ready(function() {
    let lang = $('html').attr('lang').split('-')[0];
    $('td td:visible').translate(lang, "en");
});

let iv = setInterval(function() {
    let lang = $('html').attr('lang').split('-')[0];
    let rows = $('tbody td:visible');
    if(rows.length > 0) {
        rows.translate(lang, "en");
        clearInterval(iv);
    }
}, 1000);

let isTranslated = false;
while(!isTranslated) {
    let lang = $('html').attr('lang').split('-')[0];
    let rows = $('tbody td:visible');
    if(rows.length > 0) {
        rows.delay(1000).translate(lang, "en");
        isTranslated = true;
    }
}