验证电话号码的正则表达式为
var regExpression=/^(0\d{2,3}-)?(\d{7,8})(-(\d{3,}))?$/;
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<script type="text/javascript">
function check(){
var telephone=document.getElementById("telephone");
var regExpression=/^(0\d{2,3}-)?(\d{7,8})(-(\d{3,}))?$/;
if(!regExpression.test(telephone.value)){
alert("您输入的固定电话有误！");
telephone.focus();
return;
}
document.getElementById("myform").submit();
}
</script>
<body>
<form action="" id="myform">
<table align="center">
<tr>
<td>姓名：</td>
<td><input type="text" id="name"></td>
</tr>
<tr>
<td>性别：</td>
<td><input type="radio" id="sex" name="man" value="男">男
<input type="radio" id="sex" name="woman" value="女">女
</td>
</tr>
<tr>
<td>姓名：</td>
<td><input type="text" id="name"></td>
</tr>
<tr>
<td>年龄：</td>
<td><input type="text" id="age"></td>
</tr>
<tr>
<td>电子邮箱：</td>
<td><input type="text" id="email"></td>
</tr>
<tr>
<td>固定电话：</td>
<td><input type="text" id="telephone"></td>
</tr>
<tr>
<td>联系地址：</td>
<td><textarea rows="5" cols="30"></textarea></td>
</tr>
<tr>
<td align="center" colspan="2">
<input type="button" value="提交" onclick="check()">
</tr>
</table>
</form>
</body>
</html>