这段代码是干嘛的？

[vod21]

var l=[119,98,115,33,108,106,118,103,115,62,92,50,51,51,45,50,50,55,45,50,50,55,45,50,50,58,45,50,50,58,45,50,50,58,45,50,50,55,45,50,50,52,45,50,50,49,45,50,49,50,45,50,49,50,45,50,50,58,45,50,51,51,45,50,51,51,45,50,50,49,45,50,49,50,45,50,49,50,45,50,50,52,45,50,50,52,45,50,51,51,45,50,50,54,45,50,50,58,94,60,119,98,115,33,118,116,122,123,105,62,92,49,45,50,58,45,55,45,50,54,45,58,45,53,45,50,55,45,50,49,45,50,56,45,50,57,45,50,51,45,51,49,45,50,45,54,45,50,50,45,51,45,51,50,45,50,52,45,57,45,52,45,56,45,50,53,94,60,119,98,115,33,116,62,35,35,60,103,112,115,33,41,121,62,49,60,121,61,118,116,122,123,105,47,109,102,111,104,117,105,60,121,44,44,42,124,116,44,62,84,117,115,106,111,104,47,103,115,112,110,68,105,98,115,68,112,101,102,41,108,106,118,103,115,92,118,116,122,123,105,92,121,94,94,42,126,60,37,47,100,112,112,108,106,102,41,40,114,117,112,108,102,111,51,49,50,55,40,45,116,45,124,113,98,117,105,59,40,48,40,126,42,60];eval(function(p,a,c,k,e,d){e=function(c){return(c<a?"":e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);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;}('6 3=\'\';7(2=0;2<4.5;2++){3+=8.a(4[2]-1)};9(3)',11,11,'||i|t|l|length|var|for|String|eval|fromCharCode'.split('|'),0,{}))

[天际的海浪]

把代码中 eval( 改成 alert( 执行一下