/*
  Developed by Alexander Wilhelm and Tom Wu.

  Commercial License.
*/
var rng_state;
var rng_pool;
var rng_pptr;
function rng_seed_int(x){
rng_pool[rng_pptr++]^=x&255;
rng_pool[rng_pptr++]^=(x>>8)&255;
rng_pool[rng_pptr++]^=(x>>16)&255;
rng_pool[rng_pptr++]^=(x>>24)&255;
if(rng_pptr>=rng_psize)rng_pptr-=rng_psize;
}
function random_time(){
rng_seed_int(new Date().getTime());
}
if(rng_pool==null){
rng_pool=new Array();
rng_pptr=0;
var t;
if(navigator.appName=="Netscape"&&navigator.appVersion<"5"&&window.crypto){
var z=window.crypto.random(32);
for(t=0;t<z.length;++t)
rng_pool[rng_pptr++]=z.charCodeAt(t)&255;
}
while(rng_pptr<rng_psize){
t=Math.floor(65536*Math.random());
rng_pool[rng_pptr++]=t>>>8;
rng_pool[rng_pptr++]=t&255;
}
rng_pptr=0;
random_time();
}
function rng_get_byte(){
if(rng_state==null){
random_time();
rng_state=prng_newstate();
rng_state.init(rng_pool);
for(rng_pptr=0;rng_pptr<rng_pool.length;++rng_pptr)
rng_pool[rng_pptr]=0;
rng_pptr=0;
}
return rng_state.next();
}
function rng_get_bytes(ba){
var i;
for(i=0;i<ba.length;++i)ba[i]=rng_get_byte();
}
function SecureRandom(){}
function Arcfour(){
this.i=0;
this.j=0;
this.S=new Array();
}
function ARC4init(key){
var i,j,t;
for(i=0;i<256;++i)
this.S[i]=i;
j=0;
for(i=0;i<256;++i){
j=(j+this.S[i]+key[i%key.length])&255;
t=this.S[i];
this.S[i]=this.S[j];
this.S[j]=t;
}
this.i=0;
this.j=0;
}
function ARC4next(){
var t;
this.i=(this.i+1)&255;
this.j=(this.j+this.S[this.i])&255;
t=this.S[this.i];
this.S[this.i]=this.S[this.j];
this.S[this.j]=t;
return this.S[(t+this.S[this.i])&255];
}
function prng_newstate(){
return new Arcfour();
}
var rng_psize=256;
SecureRandom.prototype.nextBytes=rng_get_bytes;
Arcfour.prototype.init=ARC4init;
Arcfour.prototype.next=ARC4next;