JavaScript - Plural forms for russian words

pluralize-ru.js

/**
 * Plural forms for russian words
 * @param  {Integer} count quantity for word
 * @param  {Array} words Array of words. Example: ['депутат', 'депутата', 'депутатов'], ['коментарий', 'коментария', 'комментариев']
 * @return {String}        Count + plural form for word
 */
function pluralize(count, words) {
    var cases = [2, 0, 1, 1, 1, 2];
    return count + ' ' + words[ (count % 100 > 4 && count % 100 < 20) ? 2 : cases[ Math.min(count % 10, 5)] ];
}