(function($){
  $.fn.jTime = function(o) {
    var d = {x:'time-capa',ma:new Date(),i:0};
    var o = $.extend(d, o);
    o.ma = new Date(o.ma);

    var mHF = function (){
      var ma = new Date(o.ma.getTime() + o.i * 1000);
      h = ma.getHours();
      m = ma.getMinutes();
      s = ma.getSeconds();
      if (h<=9) h = '0'+h;
      if (m<=9) m = '0'+m;
      if (s<=9) s = '0'+s;
      hi = h + ":" + m + ":" + s;
      $('#'+o.x).html(hi);
      o.i += 1;
    }
    return this.each(function(){
      o.x = $(this).attr('id');
      setInterval(mHF,1000);
    });
};
})(jQuery);