function setup()
{
 for(i=0;i<s.length-1;i++)
	 if (window.attachEvent){
			$val(s[i]).attachEvent("onchange",new Function("change("+(i+1)+")"));
	}
	else{
			$val(s[i]).addEventListener("change", change(i+1), false);
	}
}
function change(v){
	var nowvalue=$sel(s[v*1-1]).value*1;
	if (nowvalue>0){
		postinfos("actions=cert_typeinfo&"+s[v-1]+"="+nowvalue,"admin_cert_check.asp",s[v-1],s[v]);
	}else{
		for(i=v;i<s.length;i++){
			fillSel("請(qǐng)選擇...",$val(s[i]));
			$div(s[i]).innerHTML="";

		}
	}
}