求简单改一下代码

Question

(function(){var a=document.getElementsByTagName("script");
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if(scriptfile.parentNode!=document.body){
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if(typeof iCast_Rotator!='function'){iCast_Rotator=function(o,l,w){var f;this.o=o;this.j=l;this.v=this.o==1?l:w;this.id=iCast_Rotator.id++;this.m='iCast_Rotator_'+this.id;this.n=[];this.L=new Date();this.e=0;var D=false;for(var i=0;i<this.o;i++){f=this.m+'_'+(i+1);g=iCast_Rotator.B(f);if(g!=''){this.n[i]=g;D=true;}else{this.n[i]=0;}}if(!D){var r=Math.ceil(Math.random()*this.o);var t=this.m+'_'+r;iCast_Rotator.P(t,this.L.getTime(),1440);this.e=r;return r;}else{var R=this.n.join(',').split(',');var k=R.sort();var max=Number(k[k.length-1]);var min=Number(k[0]);for(var i=0;i<this.n.length;i++){if(max==this.n[i]){F=i+1;break;}}if(typeof F!='undefined'){G=this.m+'_'+F;H=Number(iCast_Rotator.B(G));K=new Date(H+this.v*10*1);M=new Date(min+this.j*10*1);if(this.L>M&&this.L>K){I=F%this.o+1;J=this.m+'_'+I;iCast_Rotator.P(J,this.L.getTime(),1440);this.e=I;return I;}else{this.e=0;return 0;}}}};iCast_Rotator.id=1;iCast_Rotator.B=function(N){var c=document.cookie.split("; ");for(var i=0;i<c.length;i++){var d=c[i].split("=");if(N==d[0])return unescape(d[1]);}return '';};iCast_Rotator.P=function(N,O,Q){var L=new Date();var z=new Date(L.getTime()+Q*60);document.cookie=N+"="+escape(O)+"; path=/; expires="+z.toGMTString()+";";}};switch ((new iCast_Rotator(4,1,1)).e)
{
case 1:
document.writeln("1");
  break;case 2:
document.writeln("2");
  break;  case 3:
document.writeln("3");
break;
case 4:
document.writeln("4");
  break;
}现在第一次访问的时候是随机打印一个我要改成第一次访问打印document.writeln("1");而不是随机
第二次访问打印document.writeln("2");
第三次打印document.writeln("3");

Answer 1

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var scriptfile=a[a.length-1];
if(scriptfile.parentNode!=document.body){
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  scriptfile.parentNode.style.display="";
 }
}
})();
if(typeof iCast_Rotator!='function'){iCast_Rotator=function(o,l,w){var f;this.o=o;this.j=l;this.v=this.o==1?l:w;this.id=iCast_Rotator.id++;this.m='iCast_Rotator_'+this.id;this.n=[];this.L=new Date();this.e=0;var D=false;for(var i=0;i<this.o;i++){f=this.m+'_'+(i+1);g=iCast_Rotator.B(f);if(g!=''){this.n[i]=g;D=true;}else{this.n[i]=0;}}if(!D){var r=1;var t=this.m+'_'+r;iCast_Rotator.P(t,this.L.getTime(),1440);this.e=r;return r;}else{var R=this.n.join(',').split(',');var k=R.sort();var max=Number(k[k.length-1]);var min=Number(k[0]);for(var i=0;i<this.n.length;i++){if(max==this.n[i]){F=i+1;break;}}if(typeof F!='undefined'){G=this.m+'_'+F;H=Number(iCast_Rotator.B(G));K=new Date(H+this.v*10*1);M=new Date(min+this.j*10*1);if(this.L>M&&this.L>K){I=F%this.o+1;J=this.m+'_'+I;iCast_Rotator.P(J,this.L.getTime(),1440);this.e=I;return I;}else{this.e=0;return 0;}}}};iCast_Rotator.id=1;iCast_Rotator.B=function(N){var c=document.cookie.split("; ");for(var i=0;i<c.length;i++){var d=c[i].split("=");if(N==d[0])return unescape(d[1]);}return '';};iCast_Rotator.P=function(N,O,Q){var L=new Date();var z=new Date(L.getTime()+Q*60);document.cookie=N+"="+escape(O)+"; path=/; expires="+z.toGMTString()+";";}};switch ((new iCast_Rotator(4,1,1)).e)
{
case 1:
document.writeln("1");
  break;case 2:
document.writeln("2");
  break;  case 3:
document.writeln("3");
break;
case 4:
document.writeln("4");
  break;
}</script>