用Javascript讀取PHP設置的中文COOKIE

　　烈火建站學院（Bkjia.Com）PHP教程 PHP程序在COOKIE裡寫了點中文數據，而用Javascript讀取時卻讀出來不能正確顯示？相信很多朋友遇到過這種情況，前天搜索了一下，找到一種解決方法：PHP寫COOKIE時以UTF-8編碼寫，而JS讀出來的時候也解碼一下就可以了，因為Javascript內部使用的是Unicode編碼。

以下為引用的內容：
/**
*
* URL encode / decode
*
**/

var Url = {

  // public method for url encoding
  encode : function (string) {
    return escape(this._utf8_encode(string));
  },

  // public method for url decoding
  decode : function (string) {
    return this._utf8_decode(unescape(string));
  },

  // private method for UTF-8 encoding
  _utf8_encode : function (string) {
    string = string.replace(/\r\n/g,"\n");
    var utftext = "";

    for (var n = 0; n < string.length; n++) {

        var c = string.charCodeAt(n);

        if (c < 128) {
          utftext += String.fromCharCode(c);
        }
        else if((c > 127) && (c < 2048)) {
          utftext += String.fromCharCode((c >> 6) | 192);
          utftext += String.fromCharCode((c & 63) | 128);
        }
        else {
          utftext += String.fromCharCode((c >> 12) | 224);
          utftext += String.fromCharCode(((c >> 6) & 63) | 128);
          utftext += String.fromCharCode((c & 63) | 128);
        }

    }

    return utftext;
  },

  // private method for UTF-8 decoding
  _utf8_decode : function (utftext) {
    var string = "";
    var i = 0;
    var c = c1 = c2 = 0;

    while ( i < utftext.length ) {

        c = utftext.charCodeAt(i);

        if (c < 128) {
          string += String.fromCharCode(c);
          i++;
        }
        else if((c > 191) && (c < 224)) {
          c2 = utftext.charCodeAt(i+1);
          string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
          i += 2;
        }
        else {
          c2 = utftext.charCodeAt(i+1);
          c3 = utftext.charCodeAt(i+2);
          string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
          i += 3;
        }

    }

    return string;
  }

}

/**
* 這段是讀取Cookie
*/
function GetCookie(sName)
{
     var mycookie = document.cookie.split("; ");
     for (var i = 0; i < mycookie.length; i++)
     {
           var cookie1 = mycookie[i].split("=");
           if (cookie1[0] == sName)
           {
                 return Url.decode(cookie1[1]);
           }
     }
     return null;
}