<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
#apDiv1 {
position: absolute;
left: -19px;
top: 42px;
background-color: #0F6;
width: 1024px;
height: 980px;
z-index: 1;
}
#apDiv2 {
position: absolute;
left: 4px;
top: 45px;
background-color: #69F;
width: 977px;
height: 99px;
z-index: 2;
}
#apDiv3 {
position: absolute;
left: 4px;
top: 141px;
width: 102px;
height: 868px;
z-index: 3;
}
</style>
</head>
<body>
<div id="apDiv1"></div>
<div id="apDiv2">
<p align="center"><font size="+4">导航栏</font></p>
</div>
<div id="apDiv3"></div>
请输入你的身份证号：<input type="text" id="id"/>
<div><br />
<input type="button" value="提交" onclick="check()"/>
</div>
</body>
</html>
<script >
function check()
{
var reg= new RegExp(/^(\d{15}$|^\d{18}$|^\d{17}(\d|X|x))$/);
var id=document.getElementById("id").value;
if(reg.test(id)){
alert("输入正确")
}
else{
alert("输入错误");
}
}
</script>
</body>
</html>
