function Base64Decode(cStr:string):string; var ResStr:string;
DecStr:string; RecodeLine : array [1..76] of byte; f1,f2 : word; l:integer; begin l :=length(cStr); ResStr:=''; for f1:=1 to l do if cStr[f1]='=' then RecodeLine[f1]:=0 else RecodeLine[f1]:=pos(cStr[f1],Base64Table)-1; f1:=1; while f1<length(cStr) do begin DecStr:=chr(byte(RecodeLine[f1] shl 2)+RecodeLine[f1+1] shr 4)+ chr(byte(RecodeLine[f1+1] shl 4)+RecodeLine[f1+2] shr 2)+ chr(byte(RecodeLine[f1+2] shl 6)+RecodeLine[f1+3]); ResStr:=ResStr+DecStr; inc(f1,4); end; Base64Decode:=ResStr;end;
