< type=text/java>
HQA(str){
var rs=new RegExp("(^|)"+str+"=([^\&]*)(\&|$)","gi").exec(ls),tmp;
if(tmp=rs){return tmp[2];}else{
return "0";}
}
var ls=String(location.href?location.href:location.href);//获取本页地址
var ld = HQA("pid");
$("down1").href=$("down1").href+"&from="+ld;
$("down2").href=$("down2").href+"&from="+ld;
$("down3").href=$("down3").href+"&from="+ld;
$("down4").href=$("down4").href+"&from="+ld;
>