Код:
<script language=JavaScript>function decrypt_p(x){var l=x.length,b=1024,i,j,r,p=0,s=0,w=0,t=Array(63,30,50,44,23,47,24,42,21,33,0,0,0,0,0,0,0,54,52,4,53,11,7,22,51,27,2,56,15,1,5,20,55,62,3,36,46,49,34,16,40,39,26,0,0,0,0,59,0,31,60,29,17,8,10,48,19,45,43,9,57,61,41,14,35,58,13,12,37,38,25,28,6,32,18);for(j=Math.ceil(l/b);j>0;j--){r='';for(i=Math.min(l,b);i>0;i--,l--){w|=(t[x.charCodeAt(p++)-48])<<s;if(s){r+=String.fromCharCode(165^w&255);w>>=8;s-=2}else{s=6}}document.write(r)}}decrypt_p("NJ")</script>
не ходите эксплорером!