<!--
function validation(){
	if (document.aform.username.value == ""){
		document.aform.username.focus();
		alert("請輸入名稱");
		return false;
	}
	if (document.aform.password.value == ""){
		document.aform.password.focus();		
		alert("請輸入密碼");
		return false;
	}
	document.aform.submit();
}

function check_alpha(str){
	for (var i=0; i < str.length; i++){
		if (is_alpha(str.charAt(i)) == false)
			return false;
	}
	return true;
}

function is_alpha( c ) {
	if (( c >= 'A' ) && ( c <= 'Z' )) return true;
	if (( c >= 'a' ) && ( c <= 'z' )) return true;
	return false;
}

function is_digit( c ) {
	if (( c >= '0' ) && ( c <= '9' )) return true;
	return false;
}

function is_price( c ) {
	if ((( c >= '0' ) && ( c <= '9' )) || c == ',' || c == '.') return true;
	return false;
}

function is_space_digit( c ) {
	if ((( c >= '0' ) && ( c <= '9' )) || c == ' ') return true;
	return false;
}

function priceValidate(str){
	for (var i=0; i < str.length; i++){
		if (is_price(str.charAt(i)) == false)
			return false;
	}
	return true;	
}

function phoneValidate(str){
	if (str.length  < 8)
		return false;

	for (var i=0; i < str.length; i++){
		if (is_space_digit(str.charAt(i)) == false)
			return false;
	}
	return true;	
}

function emailValidate(string_To_check) {
	var emailPat=new RegExp("^(.+)@(.+)$");
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat="^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/"
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	var matchArray = emailPat.exec(string_To_check);

	if (matchArray==null) {
	  return false }

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
		return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		  for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
			return false
			}
		}
		return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 ||
		domArr[domArr.length-1].length>3) {
	   return false
	}

	if (len<2) {
	   return false
	}

	// If we've gotten this far, everything's valid!
	return true;
}
//-->