function checkdata() {var ssn=form.username.value.toLowerCase();if (!checkUserName(ssn)) return false;if( strlen(form.password.value)<6 || strlen(form.password.value)>16 ) {alert("\正確地登錄密碼長度為6-16位，僅可用英文、數字、特殊字符！")form.password.focus()return false;}if( strlen2(form.password.value) ) {alert("\您的密碼中包含了非法字符，僅可用英文、數字、特殊字符！")form.password.focus()return false;}if( form.password.value == form.username.value ) {alert("\用戶名和密碼不能相同！")form.password.focus()return false;}if( form.confirmPassword.value =="" ) {alert("\請輸入密碼確認！")form.confirmPassword.focus()return false;}if( form.confirmPassword.value != form.password.value ) {alert("\兩次密碼輸入不一致！")form.password.focus()return false;}if( form.question.value == "") {alert("\請輸入提示問題,當您忘記密碼時可根據該問題提示密碼！")form.question.focus()return false;}if( strlen(form.answer.value)<6) {alert("\請重新輸入問題答案，長度不少于6位！")form.answer.focus()return false;}if( form.question.value == form.answer.value ) {alert("\密碼提示問題和答案不能相同！")form.answer.focus()return false;}if( strlen(form.pingma.value)<6 || strlen(form.pingma.value)>16 ) {alert("\正確的安全碼長度為6-16位，僅可用英文、數字、特殊字符！")form.pingma.focus()return false;}if( strlen2(form.pingma.value) ) {alert("\您的安全碼中包含了非法字符，僅可用英文、數字、特殊字符！")form.pingma.focus()return false;}if( form.pingma.value == form.username.value ) {alert("\用戶名和安全碼不能相同！")form.pingma.focus()return false;}if( form.pingma2.value =="" ) {alert("\請輸入安全碼確認！")form.pingma2.focus()return false;}if( form.pingma.value != form.pingma2.value ) {alert("\兩次安全碼輸入不一致！")form.pingma.focus()return false;}return true;}function checkUserName(ssn){if( ssn.length<3 || ssn.length>18 ) {alert("\請輸入正確的用戶名,用戶名長度為3-18位！")form.username.focus()return false;}if (isWhiteWpace(ssn)){alert("\請輸入正確的用戶名,用戶名中不能包含空格！")form.username.focus()return false;}if (!isSsnString(ssn)){alert("\    對不起，您選擇的用戶名不正確或已被占用！用戶名\n由a～z的英文字母(不區分大小寫)、0～9的數字、點、減\n號或下劃線組成，長度為3～18個字符，只能以數字或字母\n開頭和結尾,例如:kyzy_001。")form.username.focus()return false;}return true;}function strlen(str){	var len;	var i;	len = 0;	for (i=0;i<str.length;i++){		if (str.charCodeAt(i)>255) len+=2; else len++;	}	return len;}function strlen2(str){	var len;	var i;	len = 0;	for (i=0;i<str.length;i++){		if (str.charCodeAt(i)>255) return true;	}	return false;}function isWhiteWpace (s){  var whitespace = " \t\n\r";  var i;  for (i = 0; i < s.length; i++){        var c = s.charAt(i);     if (whitespace.indexOf(c) >= 0) {		  return true;	  }   }   return false;}function isSsnString (ssn){	var re=/^[0-9a-z][\w-.]*[0-9a-z]$/i;	if(re.test(ssn))		return true;	else		return false;}function checkssn(gotoURL) {   var ssn=form.username.value.toLowerCase();   if (checkUserName(ssn)){	   var open_url = gotoURL + "?username=" + ssn;	   window.open(open_url,'','status=0,directories=0,resizable=0,toolbar=0,location=0,scrollbars=0,width=322,height=200');	}}