HTML仿CS结构填写注册码,自动切换下一输入框!

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
</head>
<body>
<form id="myForm">
<input size="5" jishu="1" name="key" maxlength="3" value="" onkeyup="next(this,this.value)">
<input size="5" jishu="2" name="key" maxlength="3" value="" onkeyup="next(this,this.value)">
<input size="5" jishu="3" name="key" maxlength="3" value="" onkeyup="next(this,this.value)">
</form>
<script type="text/javascript">
var keys = document.getElementsByName("key");
var index = 0;
function next(x,y){
for(var i=0 ;i<keys.length;i++)
{
if(keys[i].value==x.value && x.value.length==x.maxLength)
{
index ++;
if(index<keys.length){
keys[i+1].focus();
}
}
}
}
</script>
</body>
</html>
经测试,在IE和FF浏览器下均可正常使用。本人原创,转载请注明出处!谢谢合作。
原文地址:http://blog.csdn.net/zhengwei804/archive/2011/04/14/6324060.aspx