text: function number_format(number, decimals, dec_point, thousands_sep) {
    //  discuss at: http://phpjs.org/functions/number_format/
    // original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // improved by: davook
    // improved by: Brett Zamir (http://brett-zamir.me)
    // improved by: Brett Zamir (http://brett-zamir.me)
    // improved by: Theriault
    // improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // bugfixed by: Michael White (http://getsprink.com)
    // bugfixed by: Benjamin Lupton
    // bugfixed by: Allan Jensen (http://www.winternet.no)
    // bugfixed by: Howard Yeend
    // bugfixed by: Diogo Resende
    // bugfixed by: Rival
    // bugfixed by: Brett Zamir (http://brett-zamir.me)
    //  revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    //  revised by: Luke Smith (http://lucassmith.name)
    //    input by: Kheang Hok Chin (http://www.distantia.ca/)
    //    input by: Jay Klehr
    //    input by: Amir Habibi (http://www.residence-mixte.com/)
    //    input by: Amirouche
    //   example 1: number_format(1234.56);
    //   returns 1: '1,235'
    //   example 2: number_format(1234.56, 2, ',', ' ');
    //   returns 2: '1 234,56'
    //   example 3: number_format(1234.5678, 2, '.', '');
    //   returns 3: '1234.57'
    //   example 4: number_format(67, 2, ',', '.');
    //   returns 4: '67,00'
    //   example 5: number_format(1000);
    //   returns 5: '1,000'
    //   example 6: number_format(67.311, 2);
    //   returns 6: '67.31'
    //   example 7: number_format(1000.55, 1);
    //   returns 7: '1,000.6'
    //   example 8: number_format(67000, 5, ',', '.');
    //   returns 8: '67.000,00000'
    //   example 9: number_format(0.9, 0);
    //   returns 9: '1'
    //  example 10: number_format('1.20', 2);
    //  returns 10: '1.20'
    //  example 11: number_format('1.20', 4);
    //  returns 11: '1.2000'
    //  example 12: number_format('1.2000', 3);
    //  returns 12: '1.200'
    //  example 13: number_format('1 000,50', 2, '.', ' ');
    //  returns 13: '100 050.00'
    //  example 14: number_format(1e-8, 8, '.', '');
    //  returns 14: '0.00000001'
  
    number = (number + '')
            .replace(/[^0-9+\-Ee.]/g, '');
    var n = !isFinite(+number) ? 0 : +number,
            prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
            sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
            dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
            s = '',
            toFixedFix = function(n, prec) {
      var k = Math.pow(10, prec);
      return '' + (Math.round(n * k) / k)
              .toFixed(prec);
    };
    // Fix for IE parseFloat(0.55).toFixed(0) = 0;
    s = (prec ? toFixedFix(n, prec) : '' + Math.round(n))
            .split('.');
    if (s[0].length > 3) {
      s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep);
    }
    if ((s[1] || '')
            .length < prec) {
      s[1] = s[1] || '';
      s[1] += new Array(prec - s[1].length + 1)
              .join('0');
    }
    return s.join(dec);
  }
  