function base64_decode(data){var b64="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";var o1,o2,o3,h1,h2,h3,h4,bits,i=0,ac=0,dec="",tmp_arr=[];if(!data){return data;}
data+='';do{h1=b64.indexOf(data.charAt(i++));h2=b64.indexOf(data.charAt(i++));h3=b64.indexOf(data.charAt(i++));h4=b64.indexOf(data.charAt(i++));bits=h1<<18|h2<<12|h3<<6|h4;o1=bits>>16&0xff;o2=bits>>8&0xff;o3=bits&0xff;if(h3==64){tmp_arr[ac++]=String.fromCharCode(o1);}else if(h4==64){tmp_arr[ac++]=String.fromCharCode(o1,o2);}else{tmp_arr[ac++]=String.fromCharCode(o1,o2,o3);}}while(i<data.length);dec=tmp_arr.join('');dec=this.utf8_decode(dec);return dec;}
function base64_encode(data){var b64="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";var o1,o2,o3,h1,h2,h3,h4,bits,i=0,ac=0,enc="",tmp_arr=[];if(!data){return data;}
data=this.utf8_encode(data+'');do{o1=data.charCodeAt(i++);o2=data.charCodeAt(i++);o3=data.charCodeAt(i++);bits=o1<<16|o2<<8|o3;h1=bits>>18&0x3f;h2=bits>>12&0x3f;h3=bits>>6&0x3f;h4=bits&0x3f;tmp_arr[ac++]=b64.charAt(h1)+b64.charAt(h2)+b64.charAt(h3)+b64.charAt(h4);}while(i<data.length);enc=tmp_arr.join('');var r=data.length%3;return(r?enc.slice(0,r-3):enc)+'==='.slice(r||3);}
function utf8_decode(str_data){var tmp_arr=[],i=0,ac=0,c1=0,c2=0,c3=0;str_data+='';while(i<str_data.length){c1=str_data.charCodeAt(i);if(c1<128){tmp_arr[ac++]=String.fromCharCode(c1);i++;}else if(c1>191&&c1<224){c2=str_data.charCodeAt(i+1);tmp_arr[ac++]=String.fromCharCode(((c1&31)<<6)|(c2&63));i+=2;}else{c2=str_data.charCodeAt(i+1);c3=str_data.charCodeAt(i+2);tmp_arr[ac++]=String.fromCharCode(((c1&15)<<12)|((c2&63)<<6)|(c3&63));i+=3;}}
return tmp_arr.join('');}
function utf8_encode(argString){if(argString===null||typeof argString==="undefined"){return"";}
var string=(argString+'');var utftext="",start,end,stringl=0;start=end=0;stringl=string.length;for(var n=0;n<stringl;n++){var c1=string.charCodeAt(n);var enc=null;if(c1<128){end++;}else if(c1>127&&c1<2048){enc=String.fromCharCode((c1>>6)|192)+String.fromCharCode((c1&63)|128);}else{enc=String.fromCharCode((c1>>12)|224)+String.fromCharCode(((c1>>6)&63)|128)+String.fromCharCode((c1&63)|128);}
if(enc!==null){if(end>start){utftext+=string.slice(start,end);}
utftext+=enc;start=end=n+1;}}
if(end>start){utftext+=string.slice(start,stringl);}
return utftext;}