<!--
function user_add(chk) {
var aft_id,aft_pw;
aft_id=chk.uid.value;
aft_pw=chk.upw.value;
	if (chk.utb.value =="") {
		alert("請選擇伺服器代號");
		chk.utb.focus();
		return false;
	}
	if (chk.uid.value =="") {
		alert("請輸入帳號名稱");
		chk.uid.focus();
		return false;
	}
	if (chk.upw.value =="") {
		alert("請輸入自設密碼");
		chk.upw.focus();
		return false;
	}
	if (chk.chupw.value =="") {
		alert("請輸入確認密碼");
		chk.chupw.focus();
		return false;
	}
	if (chk.upw.value!=chk.chupw.value) {
		alert("兩組密碼不同，請重新輸入");
		chk.upw.value="";
		chk.chupw.value="";
		chk.upw.focus();
		return false;
	}
	if (chk.uemail.value =="") {
		alert("請輸入電子郵件");
		chk.uemail.focus();
		return false;
	}
	if (chk.uemail.value.indexOf('@',0) == -1 || chk.uemail.value.indexOf('.',0) == -1) {
		alert("郵件伺服器錯誤");
		chk.uemail.focus();
		return false;
	}
	if (aft_id.charAt(0) =='_') {
		alert("帳號第一個字元不能是符號");
		chk.uid.value="";
		chk.uid.focus();
		return false;
	}
	if (!(aft_id.charAt(0) >='a') && (aft_id.charAt(0) <='z')) {
		alert("帳號第一個字元必須是小寫英文字母");
		chk.uid.value="";
		chk.uid.focus();
		return false;
	}
	if (aft_id.length <3 || aft_id.length >15) {
		alert("帳號僅限 3 ~ 15 個字元");
		chk.uid.focus();
		return false;
	}
	for (vcc=0;vcc<aft_id.length;vcc++) {
		if (!((aft_id.charAt(vcc) >='0' && aft_id.charAt(vcc) <='9') || (aft_id.charAt(vcc) >='a' && aft_id.charAt(vcc) <='z') || (aft_id.charAt(vcc) >='A' && aft_id.charAt(vcc) <='Z') || (aft_id.charAt(vcc) =='_'))) {
			alert("帳號含未能辯識字元");
			chk.uid.value="";
			chk.uid.focus();
			return false;
		}
	}
	if (aft_pw.length <4 || aft_pw.length >10) {
		alert("密碼僅限 4 ~ 10 個字元");
		chk.upw.focus();
		return false;
	}
	for (vcc=0;vcc<aft_pw.length;vcc++) {
		if (aft_pw.charAt(vcc) ==' ') {
			alert("密碼不能輸入空白字元");
			chk.upw.value="";
			chk.chupw.value="";
			chk.upw.focus();
			return false;
		}
		if (!((aft_pw.charAt(vcc) >='0' && aft_pw.charAt(vcc) <='9') || (aft_pw.charAt(vcc) >='a' && aft_pw.charAt(vcc) <='z') || (aft_pw.charAt(vcc) >='A' && aft_pw.charAt(vcc) <='Z'))) {
			alert("密碼含未能辯識字元");
			chk.upw.value="";
			chk.chupw.value="";
			chk.upw.focus();
			return false;
		}
	}

}
//-->