var b64map="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";var b64pad="=";function hex2b64(h){var i;var c;var ret="";for(i=0;i+3<=h.length;i+=3){c=parseInt(h.substring(i,i+3),16);ret+=b64map.charAt(c>>6)+ b64map.charAt(c&63);}
if(i+1==h.length){c=parseInt(h.substring(i,i+1),16);ret+=b64map.charAt(c<<2);}
else if(i+2==h.length){c=parseInt(h.substring(i,i+2),16);ret+=b64map.charAt(c>>2)+ b64map.charAt((c&3)<<4);}
while((ret.length&3)>0)ret+=b64pad;return ret;}
function b64tohex(s){var ret=""
var i;var k=0;var slop;for(i=0;i<s.length;++i){if(s.charAt(i)==b64pad)break;v=b64map.indexOf(s.charAt(i));if(v<0)continue;if(k==0){ret+=int2char(v>>2);slop=v&3;k=1;}
else if(k==1){ret+=int2char((slop<<2)|(v>>4));slop=v&0xf;k=2;}
else if(k==2){ret+=int2char(slop);ret+=int2char(v>>2);slop=v&3;k=3;}
else{ret+=int2char((slop<<2)|(v>>4));ret+=int2char(v&0xf);k=0;}}
if(k==1)
ret+=int2char(slop<<2);return ret;}
function b64toBA(s){var h=b64tohex(s);var i;var a=new Array();for(i=0;2*i<h.length;++i){a[i]=parseInt(h.substring(2*i,2*i+2),16);}
return a;}