function urlDecode(str){str=str.replace(new RegExp('\\+','g'),' ');return unescape(str);}
function urlEncode(str){str=escape(str);str=str.replace(new RegExp('\\+','g'),'%2B');return str.replace(new RegExp('%20','g'),'+');}
var END_OF_INPUT=-1;var base64Chars=new Array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/');var reverseBase64Chars=new Array();for(var i=0;i<base64Chars.length;i++){reverseBase64Chars[base64Chars[i]]=i;}
var base64Str;var base64Count;function setBase64Str(str){base64Str=str;base64Count=0;}
function readBase64(){if(!base64Str)return END_OF_INPUT;if(base64Count>=base64Str.length)return END_OF_INPUT;var c=base64Str.charCodeAt(base64Count)&0xff;base64Count++;return c;}
function encodeBase64(str){setBase64Str(str);var result='';var inBuffer=new Array(3);var lineCount=0;var done=false;while(!done&&(inBuffer[0]=readBase64())!=END_OF_INPUT){inBuffer[1]=readBase64();inBuffer[2]=readBase64();result+=(base64Chars[inBuffer[0]>>2]);if(inBuffer[1]!=END_OF_INPUT){result+=(base64Chars[((inBuffer[0]<<4)&0x30)|(inBuffer[1]>>4)]);if(inBuffer[2]!=END_OF_INPUT){result+=(base64Chars[((inBuffer[1]<<2)&0x3c)|(inBuffer[2]>>6)]);result+=(base64Chars[inBuffer[2]&0x3F]);}else{result+=(base64Chars[((inBuffer[1]<<2)&0x3c)]);result+=('=');done=true;}}else{result+=(base64Chars[((inBuffer[0]<<4)&0x30)]);result+=('=');result+=('=');done=true;}
lineCount+=4;if(lineCount>=76){result+=('\n');lineCount=0;}}
return result;}
function readReverseBase64(){if(!base64Str)return END_OF_INPUT;while(true){if(base64Count>=base64Str.length)return END_OF_INPUT;var nextCharacter=base64Str.charAt(base64Count);base64Count++;if(reverseBase64Chars[nextCharacter]){return reverseBase64Chars[nextCharacter];}
if(nextCharacter=='A')return 0;}
return END_OF_INPUT;}
function ntos(n){n=n.toString(16);if(n.length==1)n="0"+n;n="%"+n;return unescape(n);}
function decodeBase64(str){setBase64Str(str);var result="";var inBuffer=new Array(4);var done=false;while(!done&&(inBuffer[0]=readReverseBase64())!=END_OF_INPUT&&(inBuffer[1]=readReverseBase64())!=END_OF_INPUT){inBuffer[2]=readReverseBase64();inBuffer[3]=readReverseBase64();result+=ntos((((inBuffer[0]<<2)&0xff)|inBuffer[1]>>4));if(inBuffer[2]!=END_OF_INPUT){result+=ntos((((inBuffer[1]<<4)&0xff)|inBuffer[2]>>2));if(inBuffer[3]!=END_OF_INPUT){result+=ntos((((inBuffer[2]<<6)&0xff)|inBuffer[3]));}else{done=true;}}else{done=true;}}
return result;}
var digitArray=new Array('0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f');function toHex(n){var result=''
var start=true;for(var i=32;i>0;){i-=4;var digit=(n>>i)&0xf;if(!start||digit!=0){start=false;result+=digitArray[digit];}}
return(result==''?'0':result);}
function pad(str,len,pad){var result=str;for(var i=str.length;i<len;i++){result=pad+result;}
return result;}
function encodeHex(str){var result="";for(var i=0;i<str.length;i++){result+=pad(toHex(str.charCodeAt(i)&0xff),2,'0');}
return result;}
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return result;}