//html
register.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用戶註冊</title>
<style type="text/css">
@import "css/userRegister.css";
</style>
</head>
<body id="BODY">
<div id="DIV_FORM">
<form method="post" action="url" >
<table id="TABLE">
<tbody>
<tr>
<td>用戶名：</td>
<td>
<input name="username" id="USERNAME" type="text" οnfοcus="showDesc(this)" οnblur="checkText(this)"/>
</td>
</tr>
<tr>
<td>密碼：</td>
<td>
<input name="password" id="PASSWORD" type="text" οnfοcus="showDesc(this)" οnblur="checkText(this)"/>
</td>
</tr>
<tr>
<td>確認密碼：</td>
<td>
<input name="password2" id="PASSWORD2" type="text" οnfοcus="showDesc(this)" οnblur="checkText(this)"/>
</td>
</tr>
<tr>
<td>身份證號：</td>
<td>
<input name="IDNumber" id="IDNUMBER" type="text" οnfοcus="showDesc(this)" οnblur="checkText(this)"/>
</td>
</tr>
<tr>
<td>電話號碼：</td>
<td>
<input name="phoneNumber" id="PHONENUMBER" type="text" οnfοcus="showDesc(this)" οnblur="checkText(this)"/>
</td>
</tr>
<tr>
<td>Email：</td>
<td>
<input name="email" id="EMAIL" type="text" οnfοcus="showDesc(this)" οnblur="checkText(this)"/>
</td>
</tr>
<tr>
<td> </td>
<td align="right">
<input type="submit" value="確認提交" />
</td>
</tr>
</tbody>
</table>
<table id="TABLE2" border="0">
<tr><td><span id="username">請輸入用戶名</span></td></tr>
<tr><td><span id="password">請輸入密碼</span></td></tr>
<tr><td><span id="password2">請再次輸入密碼</span></td></tr>
<tr><td><span id="IDNumber">請輸入身份證號碼</span></td></tr>
<tr><td><span id="phoneNumber">請輸入電話號碼</span></td></tr>
<tr><td><span id="email">請輸入郵箱地址</span></td></tr>
</table>
</form>
</div>
<script type="text/javascript" src="jslib/registerCheck.js">
</script>
</body>
</html>
//registerCheck.js
// JavaScript Document
//輸入框獲得焦點時，顯示提示內容
function showDesc(obj)
{
var id= obj.name;
document.getElementById(id).style.display="inline";
}
//輸入框失去焦點時檢驗輸入內容是否有效
function checkText(obj)
{
//獲取輸入框的id值
var id= obj.name;
var text=document.getElementById(id.toString().toUpperCase()).value;
//判斷是否爲空
if(text.replace(/\s/g, "")=="")
{
document.getElementById(id).innerHTML="輸入不能爲空";
}
else
{
//組裝方法
//取首字母轉換爲大寫,其餘不變
var firstChar=id.charAt(0).toString().toUpperCase();
//
var strsub=id.substring(1,id.length);
var strMethod="check"+firstChar+strsub+"()";
var isTrue = eval(strMethod);
if(isTrue)
{
document.getElementById(id).innerHTML="輸入有效";
}
}
}
function checkUsername()
{
//只簡單的判斷用戶名的長度
var id = document.getElementById("USERNAME");
var username=id.value;
if(username.length > 10)
{
document.getElementById(id.name).innerHTML = "輸入的用戶名過長";
return false;
}
else
return true;
}
function checkPassword()
{
var password = document.getElementById("PASSWORD").value;
return true;
}
function checkPassword2()
{
var id=document.getElementById("PASSWORD");
var id2=document.getElementById("PASSWORD2");
var password = id.value;
var password2 = id2.value;
if(password!=password2)
{
document.getElementById(id.name).innerHTML="密碼不一致";
return false;
}
return true;
}
function checkIDNumber()
{
var id=document.getElementById("IDNUMBER");
var IDNumber =id.value;
if(IDNumber.length<18||IDNumber.length>19)
{
document.getElementById(id.name).innerHTML="身份證號長度有誤";
return false;
}
var expr=/([0]{18}[x|y]?)|([1]{18}[x|y]?)/i;
if(expr.test(IDNumber))
{
document.getElementById(id.name).innerHTML="身份證號不可以全'0'或全'1'";
return false;
}
return true;
}
function checkPhoneNumber()
{
// 利用正則表達式對輸入數據匹配
var id=document.getElementById("PHONENUMBER");
var phone = id.value;
//匹配到一個非數字字符，則返回false
var expr = /\D/i;
if(expr.test(phone))
{
document.getElementById(id.name).innerHTML="不能輸入非數字字符";
return false;
}
return true;
}
function checkEmail()
{
// 利用正則表達式對輸入數據匹配
var id = document.getElementById("EMAIL")
var email = id.value;
//以字母或數字開頭，跟上@,字母數字以.com結尾
var expr = /^([0-9]|[a-z])+@([0-9]|[a-z])+(\.[c][o][m])$/i;
if(!expr.test(email))
{
document.getElementById(id.name).innerHTML="輸入的郵箱格式有誤";
return false;
}
return true;
}
CSS
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.
@charset "utf-8";
/* CSS Document */
#BODY{
text-align:center;
}
#TABLE{
text-align:left;
margin: auto;
float:left;
}
#DIV_FORM{
margin-left:300px;
}
#TABLE2{
text-align:left;
width:150px;
height:150px;
}
#TABLE2 tr
{
height:24px;
}
#TABLE2 span{
display:none;
}