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javascript如何通过正则验证表单

2013-02-27 20:11 447 查看

<html>

<head>

<meta charset="utf-8">

<script type="text/javascript">

function hum(){

var getval=document.getElementById("yhm").value;

var ger=/[\u4e00-\u9fa5]{2,4}/;

if(ger.exec(getval)==null){

document.getElementById("yhm2").innerHTML="<font color=red>用户名不符合规则</font>";

}else{

document.getElementById("yhm2").innerHTML="<font color='#33FF00'>输入正确</font>"

}

}

function ma(){

var getval=document.getElementById("ma").value;

var ger=/\w{10,16}/i;

if(ger.exec(getval)==null){

document.getElementById("ma2").innerHTML="<font color=red>密码不符合规则</font>";

}else{

document.getElementById("ma2").innerHTML="<font color='#33FF00'>输入正确</font>"

}

}

function sfz(){

var getval=document.getElementById("sfz").value;

var ger=/^[1-9]\d{17}/;

if(ger.exec(getval)==null){

document.getElementById("sfz2").innerHTML="<font color=red>身份证不符合规则</font>";

}else{

document.getElementById("sfz2").innerHTML="<font color='#33FF00'>输入正确</font>"

}

}

function ema(){

var getval=document.getElementById("ema").value;

var ger=/[a-z0-9]*\@[a-z0-9]*\.[a-z]{2,}/i;

if(ger.exec(getval)==null){

document.getElementById("ema2").innerHTML="<font color=red>Email不符合规则</font>";

}else{

document.getElementById("ema2").innerHTML="<font color='#33FF00'>输入正确</font>"

}

}

function sjh(){

var getval=document.getElementById("sjh").value;

var ger=/^[1-9]\d{10}/;

if(ger.exec(getval)==null){

document.getElementById("sjh2").innerHTML="<font color=red>手机号不符合规则</font>";

}else{

document.getElementById("sjh2").innerHTML="<font color='#33FF00'>输入正确</font>"

}

}

</script>

</head>

<body>

<center>

<table>

<tr>

<td>用户名：</td>

<td><input type="text" id="yhm" onblur="hum()"></td>

<td><span id="yhm2"></span></td>

</tr>

<tr>

<td>用户密码：</td>

<td><input type="text" id="ma" onblur="ma()"></td>

<td><span id="ma2"></span></td>

</tr>

<tr>

<td>身份证：</td>

<td><input type="text" id="sfz" onblur="sfz()"></td>

<td><span id="sfz2"></span></td>

</tr>

<tr>

<td>Email:</td>

<td><input type="text" id="ema" onblur="ema()"></td>

<td><span id="ema2"></span></td>

</tr>

<tr>

<td>手机号：</td>

<td><input type="text" id="sjh" onblur="sjh()"></td>

<td><span id="sjh2"></span></td>

</tr>

</table>

</center>

</body>

</html>

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