b64s='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_"'

function makeArray(n) {
 for (var i=1; i<=n; i++) {
  this[i]=0
 }
 return this
}

function textToBase64(t) {
 var r=''; var m=0; var a=0; var tl=t.length-1; var c
 for(n=0; n<=tl; n++) {
  c=t.charCodeAt(n)
  r+=b64s.charAt((c << m | a) & 63)
  a = c >> (6-m)
  m+=2
  if(m==6 || n==tl) {
   r+=b64s.charAt(a)
   if((n%45)==44) {r+="\n"}
   m=0
   a=0
  }
 }
 return r
}

function base64ToText(t) {
 var r=''; var m=0; var a=0; var c
 for(n=0; n<t.length; n++) {
  c=b64s.indexOf(t.charAt(n))
  if(c >= 0) {
   if(m) {
    r+=String.fromCharCode((c << (8-m))&255 | a)
   }
   a = c >> m
   m+=2
   if(m==8) { m=0 }
  }
 }
 return r
}

function rc4(key, text) {
 var i, x, y, t, x2;
 s=makeArray(0);
 for (i=0; i<256; i++) {
  s[i]=i
 }
 y=0
 for (x=0; x<256; x++) {
  y=(key.charCodeAt(x % key.length) + s[x] + y) % 256
  t=s[x]; s[x]=s[y]; s[y]=t
 }
 x=0;  y=0;
 var z=""
 for (x=0; x<text.length; x++) {
  x2=x % 256
  y=( s[x2] + y) % 256
  t=s[x2]; s[x2]=s[y]; s[y]=t
  z+= String.fromCharCode((text.charCodeAt(x) ^ s[(s[x2] + s[y]) % 256]))
 }
 return z
}

function rc4decrypt(mkey,mvalue) {
return (rc4(mkey,base64ToText(mvalue)))
}