//JS版的Server.UrlEncode编码函数 
String.prototype.UrlEncodeGB2312 = function () {
    var str = this;
    str = str.replace(/./g, function (sHex) {
        window.EnCodeStr = "";
        window.sHex = sHex;
        window.execScript('window.EnCodeStr=Hex(Asc(window.sHex))', "vbscript");
        return window.EnCodeStr.replace(/../g, "%{blogcontent}amp;");
    });
    return str;
}

String.prototype.UrlEncode = function () { 
    var s = escape(this); 
    var sa = s.split("%"); 
    var retV = "", retE = ""; 
    if (sa[0] != "") { 
        retV = sa[0]; 
    } 
    for (var i = 1; i < sa.length; i++) { 
        if (sa[i].substring(0, 1) == "u") { 
            retV += Hex2Utf8(Str2Hex(sa[i].substring(1, 5))); 
            if (sa[i].length > 4) 
                retV += sa[i].substring(5); 
        } 
        else retV += "%" + sa[i]; 
    } 
    return retV; 
} 
function Str2Hex(s) { 
    var c = ""; 
    var n; 
    var ss = "0123456789ABCDEF"; 
    var digS = ""; 
    for (var i = 0; i < s.length; i++) { 
        c = s.charAt(i); 
        n = ss.indexOf(c); 
        digS += Dec2Dig(eval(n)); 
    } 
    return digS; 
} 
function Dec2Dig(n1) { 
    var s = ""; 
    var n2 = 0; 
    for (var i = 0; i < 4; i++) { 
        n2 = Math.pow(2, 3-i); 
        if (n1 >= n2) { 
            s += '1'; 
            n1 = n1-n2; 
        } 
        else 
            s += '0'; 
    } 
    return s; 
} 
function Dig2Dec(s) { 
    var retV = 0; 
    if (s.length == 4) { 
        for (var i = 0; i < 4; i++) { 
            retV += eval(s.charAt(i)) * Math.pow(2, 3-i); 
        } 
        return retV; 
    } 
    return -1; 
} 
function Hex2Utf8(s) { 
    var retS = ""; 
    var tempS = ""; 
    var ss = ""; 
    if (s.length == 16) { 
        tempS = "1110" + s.substring(0, 4); 
        tempS += "10" + s.substring(4, 10); 
        tempS += "10" + s.substring(10, 16); 
        var sss = "0123456789ABCDEF"; 
        for (var i = 0; i < 3; i++) { 
            retS += "%"; 
            ss = tempS.substring(i * 8, (eval(i) + 1) * 8); 
            retS += sss.charAt(Dig2Dec(ss.substring(0, 4))); 
            retS += sss.charAt(Dig2Dec(ss.substring(4, 8))); 
        } 
        return retS; 
    } 
    return ""; 
}


var GB2312UnicodeConverter = {
    ToUnicode: function (str) {
        return escape(str).toLocaleLowerCase().replace(/%u/gi, '\\u');
    }
  , ToGB2312: function (str) {
      return unescape(str.replace(/\\u/gi, '%u'));
  }
};

function stringToBytes(str) {
    var ch, st, re = [];
    for (var i = 0; i < str.length; i++) {
        ch = str.charCodeAt(i);  // get char   
        st = [];                 // set up "stack"  
        do {
            st.push(ch & 0xFF);  // push byte to stack  
            ch = ch >> 8;          // shift value down by 1 byte  
        }
        while (ch);
        // add stack contents to result  
        // done because chars have "wrong" endianness  
        re = re.concat(st.reverse());
    }
    // return an array of bytes  
    return re;
}