text: function removeAccents(str) {
    var AccentsMap = [
      "aàảãáạăằẳẵắặâầẩẫấậ",
      "AÀẢÃÁẠĂẰẲẴẮẶÂẦẨẪẤẬ",
      "dđ", "DĐ",
      "eèẻẽéẹêềểễếệ",
      "EÈẺẼÉẸÊỀỂỄẾỆ",
      "iìỉĩíị",
      "IÌỈĨÍỊ",
      "oòỏõóọôồổỗốộơờởỡớợ",
      "OÒỎÕÓỌÔỒỔỖỐỘƠỜỞỠỚỢ",
      "uùủũúụưừửữứự",
      "UÙỦŨÚỤƯỪỬỮỨỰ",
      "yỳỷỹýỵ",
      "YỲỶỸÝỴ"    
    ];
    for (var i=0; i<AccentsMap.length; i++) {
      var re = new RegExp('[' + AccentsMap[i].substr(1) + ']', 'g');
      var char = AccentsMap[i][0];
      str = str.replace(re, char);
    }
    return str;
  }