var keyStr="ABCDEFGHIJKLMNOPQRSTUVWXYZ"+"abcdefghijklmnopqrstuvwxyz"+"0123456789+/=";function encode64(inp){if(inp.length==0)return "";var out="";var chr1,chr2,chr3="";var enc1,enc2,enc3,enc4="";var i=0;do{chr1=inp.charCodeAt(i++);chr2=inp.charCodeAt(i++);chr3=inp.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;}out=out+keyStr.charAt(enc1)+keyStr.charAt(enc2)+keyStr.charAt(enc3)+keyStr.charAt(enc4);chr1=chr2=chr3="";enc1=enc2=enc3=enc4="";}while(i<inp.length);return out;};function decode64(inp){if(inp.length==0)return "";var out="";var chr1,chr2,chr3="";var enc1,enc2,enc3,enc4="";var i=0;var base64test=/[^A-Za-z0-9\+\/\=]/g;if(base64test.exec(inp)){alert("There were invalid base64 characters in the input text.\n"+"Valid base64 characters are A-Z, a-z, 0-9, ?+?, ?/?, and ?=?\n"+"Expect errors in decoding.");}inp=inp.replace(/[^A-Za-z0-9\+\/\=]/g,"");do{enc1=keyStr.indexOf(inp.charAt(i++));enc2=keyStr.indexOf(inp.charAt(i++));enc3=keyStr.indexOf(inp.charAt(i++));enc4=keyStr.indexOf(inp.charAt(i++));chr1=(enc1<<2)|(enc2>>4);chr2=((enc2&15)<<4)|(enc3>>2);chr3=((enc3&3)<<6)|enc4;out=out+String.fromCharCode(chr1);if(enc3!=64){out=out+String.fromCharCode(chr2);}if(enc4!=64){out=out+String.fromCharCode(chr3);}chr1=chr2=chr3="";enc1=enc2=enc3=enc4="";}while(i<inp.length);return out;}