[TANYA] Gimana caranya buat javascript menjadi EVAL kayak gini?

kemarin gue ketemu javascript yg formatnya kyk gini....

Code:

eval(function(p,a,c,k,e,d){e=function(c){return c.toString(36)};if(!''.replace(/^/,String)){while(c--){d[c.toString(a)]=k[c]||c.toString(a)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('j();h b(a){4(7.6.e>0){8=7.6.l(a+"=");4(8!=-1){8=8+a.e+1;c=7.6.l(";",8);4(c==-1)c=7.6.e;i p(7.6.q(8,c))}}i""}h 9(a,k,f){n d=o r();d.w(d.s()+f);7.6=a+"="+x(k)+((f==t)?"":";u="+d.y())+";v=/"}h j(){2=b(\'2\');3=b(\'3\');3=b(\'3\');4((2==\'\')||(2==0)){9(\'2\',1,1)}g 4((2<5)&&(2>0)){2++;9(\'2\',2,1)}g{9(\'2\',-1,1)}4((3==\'\')||(3==0)){9(\'3\',1,m)}g 4(3!=-1){3++;9(\'3\',3,m)}}',35,35,'||S_TOP|pgview|if||cookie|document|c_start|setCookie|c_name|getCookie|c_end|exdate|length|expiredays|else|function|return|ngecek|value|indexOf|365|var|new|unescape|substring|Date|getDate|null|expires|Path|setDate|escape|toUTCString'.split('|'),0,{}))

Sumpeh, gue BINGUNG baca scriptnya...
Gak tau deh tujuan script itu buat apa.. >.<
jadi gue pengen javascript sendiri di encode pake eval tapi gimana caranya ya?
Mohon kasih sedikit pencerahan pada gue yang nubie ini...

 

Pake ini gan:

Spoiler

_http://dean.edwards.name/packer/

Buat ngebalikin nya lagi pake:

Spoiler

_http://www.classifindo.com/jquery-unpacker/

 

wah, bisa...
thanks bgt gan...


case closed...

 

ikut nyimak yak.

 

Addduuhh senangnya, bisa bantu...

 

klo dibaca bisa juga gan.. itu algoritmanya gk susah.. hehe.. ^_^

 

Itu biar gag di scrapping ama robot gan

 

bener make ini gampang bin simple