<!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>无标题文档</title>
<style type="text/css">
#checkHR {
float:left;
}
#checkCode {
float:left;
width:90px;
height:15px;
padding: 0px 10px;
color:red;
font-size:16px;
font-family:Arial;
font-style:italic;
color:Red;
border:0;
padding:2px 3px;
letter-spacing:3px;
font-weight:bolder;
}
.refresh {
font-size: 14px;
color: red;
}
.text {
font-size: 16px;
color: #F00;
}
</style>
<script language="javascript" type="application/javascript">
var code="" ; //在全局 定义验证码
function createCode(){
code = "";
var codeLength = 6;//验证码的长度
var checkCode = document.getElementById("checkCode");
checkCode.value = "";
var selectChar = new Array(0,1,2,3,4,5,6,7,8,9,\'A\',\'B\',\'C\',\'D\',\'E\',\'F\',\'G\',\'H\',\'J\',\'K\',\'L\',\'M\',\'N\',\'P\',\'Q\',\'R\',\'S\',\'T\',\'U\',\'V\',\'W\',\'X\',\'Y\',\'Z\');
for(var i=0;i<codeLength;i++) {
var charIndex = Math.floor(Math.random()*32);
code +=selectChar[charIndex];
}
if(code.length != codeLength){
createCode();
}
document.getElementById("checkCode").innerHTML = code;
}
function validate () {
var inputCode = document.getElementById("checkNum").value.toUpperCase();
if(inputCode.length <=0) {
alert("请输入验证码！");
return false;
}
else if(inputCode != code ){
alert("验证码输入错误！");
createCode();
return false;
}
else {
alert("验证码通过！");
return true;
}
}
</script>
</head>
<body bgcolor="#33CCFF">
<table>
<tr>
<td><div><span>请输入验证码：</span>
<input type="text" value=""/></div></td>
<td><a href="javascript:void(0);"><div;></div></a></td>
<td><input type="button" value="验证"/></td>
</tr>
</table>
</body>
</html>