var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",encode:function(j){var k="";var a,b,c,d,e,f,g;var h=0;j=Base64._utf8_encode(j);while(h<j.length){a=j.charCodeAt(h++);b=j.charCodeAt(h++);c=j.charCodeAt(h++);d=a>>2;e=((a&3)<<4)|(b>>4);f=((b&15)<<2)|(c>>6);g=c&63;if(isNaN(b)){f=g=64}else{if(isNaN(c)){g=64}}k=k+this._keyStr.charAt(d)+this._keyStr.charAt(e)+this._keyStr.charAt(f)+this._keyStr.charAt(g)}return k},decode:function(j){var k="";var a,b,c;var d,e,f,g;var h=0;j=j.replace(/[^A-Za-z0-9\+\/\=]/g,"");while(h<j.length){d=this._keyStr.indexOf(j.charAt(h++));e=this._keyStr.indexOf(j.charAt(h++));f=this._keyStr.indexOf(j.charAt(h++));g=this._keyStr.indexOf(j.charAt(h++));a=(d<<2)|(e>>4);b=((e&15)<<4)|(f>>2);c=((f&3)<<6)|g;k=k+String.fromCharCode(a);if(f!=64){k=k+String.fromCharCode(b)}if(g!=64){k=k+String.fromCharCode(c)}}k=Base64._utf8_decode(k);return k},_utf8_encode:function(d){d=d.replace(/\r\n/g,"\n");var e="";for(var b=0;b<d.length;b++){var a=d.charCodeAt(b);if(a<128){e+=String.fromCharCode(a)}else{if((a>127)&&(a<2048)){e+=String.fromCharCode((a>>6)|192);e+=String.fromCharCode((a&63)|128)}else{e+=String.fromCharCode((a>>12)|224);e+=String.fromCharCode(((a>>6)&63)|128);e+=String.fromCharCode((a&63)|128)}}}return e},_utf8_decode:function(e){var d="";var b=0;var a=c1=c2=0;while(b<e.length){a=e.charCodeAt(b);if(a<128){d+=String.fromCharCode(a);b++}else{if((a>191)&&(a<224)){c2=e.charCodeAt(b+1);d+=String.fromCharCode(((a&31)<<6)|(c2&63));b+=2}else{c2=e.charCodeAt(b+1);c3=e.charCodeAt(b+2);d+=String.fromCharCode(((a&15)<<12)|((c2&63)<<6)|(c3&63));b+=3}}}return d}};