}

function UnicodeToAnsi(chrCode)
{
var chrHex=chrCode.toString(16);
chrHex="000"+chrHex.toUpperCase();
chrHex=chrHex.substr(chrHex.length-4);
var i=UnicodeChr().indexOf(chrHex);
if(i!=-1)
{
chrHex=AnsicodeChr().substr(i,4);
}
return parseInt(chrHex,16)
}

function AnsiToUnicode(chrCode)
{
var chrHex=chrCode.toString(16);
chrHex="000"+chrHex.toUpperCase();
chrHex=chrHex.substr(chrHex.length-4);
var i=AnsicodeChr().indexOf(chrHex);
if(i!=-1)
{
chrHex=UnicodeChr().substr(i,4);
}
return parseInt(chrHex,16)
}


function strUnicode2Ansi(asContents)
{
var len1=asContents.length;
var temp="";
for(var i=0;i<len1;i++)
{
var varasc=asContents.charCodeAt(i);
if(varasc<0)
varasc+=65536;
if(varasc>127)
varasc=UnicodeToAnsi(varasc);
if(varasc>255)
{
var varlow=varasc & 65280;
varlow=varlow>>8;
var varhigh=varasc & 255;
temp+=String.fromCharCode(varlow)+String.fromCharCode(varhigh);
}
else
{
temp+=String.fromCharCode(varasc);
}
}
return temp;
}


function strAnsi2Unicode(asContents)
{
var len1=asContents.length;
var temp="";
var chrcode;
for(var i=0;i<len1;i++)
{
var varasc=asContents.charCodeAt(i);
if(varasc>127)
{
chrcode=AnsiToUnicode((varasc<<8)+asContents.charCodeAt(++i));
}
else
{
chrcode=varasc;
}
temp+=String.fromCharCode(chrcode);
}
return temp;
}
var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function encode64(input) {
var output = "";
var chr1, chr2, chr3 = "";
var enc1, enc2, enc3, enc4 = "";
var i = 0;

do {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);

enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;

if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}

output = output +
keyStr.charAt(enc1) +
keyStr.charAt(enc2) +
keyStr.charAt(enc3) +
keyStr.charAt(enc4);
chr1 = chr2 = chr3 = "";
enc1 = enc2 = enc3 = enc4 = "";
} while (i < input.length);

return output;
}


function decode64(input) {
var output = "";
var chr1, chr2, chr3 = "";
var enc1, enc2, enc3, enc4 = "";
var i = 0;

if(input.length%4!=0)
{
return "";
}
var base64test = /[^A-Za-z0-9\+\/\=]/g;
if (base64test.exec(input))
{
return "";
}

do {
enc1 = keyStr.indexOf(input.charAt(i++));
enc2 = keyStr.indexOf(input.charAt(i++));
enc3 = keyStr.indexOf(input.charAt(i++));
enc4 = keyStr.indexOf(input.charAt(i++));

chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;

output = output + String.fromCharCode(chr1);

if (enc3 != 64) {
output+=String.fromCharCode(chr2);
}
if (enc4 != 64) {
output+=String.fromCharCode(chr3);
}

chr1 = chr2 = chr3 = "";
enc1 = enc2 = enc3 = enc4 = "";

} while (i < input.length);

return output;
}


function ThunderEncode(t_url) {
var thunderPrefix = "AA";
var thunderPosix = "ZZ";
var thunderTitle = "thunder://";
var tem_t_url = t_url;
var thunderUrl = thunderTitle + encode64(strUnicode2Ansi(thunderPrefix + tem_t_url + thunderPosix));
return thunderUrl;
}