<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
input.err{border-color:red;}
input.suc{border-color:blue;}
</style>
<script>
window.onload=function(){
var reg={
email:/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/,
tel:/1[3-8]\d{9}/,
age:/1[8-9]|[2-9]{2}|100/,
cName:/^[\u4e00-\u9fa5]{2,4}/
}
var oF=document.getElementById('F1');
var aInp=oF.children;
for(var i=0;i<aInp.length;i++){
aInp[i].onfocus=function(){
this.className='';
this.onblur=function(){
if(reg[this.name]){
if(!reg[this.name].test(this.value)){
this.className='err';
}else{
this.className='suc';
}
}
};
};
}
function check(){
for(var i=0;i<aInp.length;i++){
if(reg[aInp[i].name]){
if(!reg[aInp[i].name].test(aInp[i].value)){
return false;
}
}
}
return true;
}
oF.onsubmit=function(){
for(var i=0;i<aInp.length;i++){
if(reg[aInp[i].name]){
if(!reg[aInp[i].name].test(aInp[i].value)){
aInp[i].className='err';
}
}
}
if(!check()){
return false;
}
};
};
</script>
</head>
<body>
<form action="http://www.baidu.com" id="F1">
email:<input type="text" name="email" id="email">
tel:<input type="text" name="tel" id="tel">
age:<input type="text" name="age" id="age">
cName:<input type="text" name="cName" id="cName">
<input type="submit" value="提交">
</form>
</body>
</html>
