在文本框中输完值后，光标自动跳入下一个文本框
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
//获取焦点
function getfocus(id){
document.getElementById(id).select();
};
function getNextObj(id){
var obj = document.getElementById(id);
if(obj.value.toString().length == obj.getAttribute("maxlength")){
document.getElementById(id).blur();
var nextId = id+1;
document.getElementById(nextId).focus();
}
}
</script>
</head>
<body >
? <label>年：</label><input type="text" id="1" maxlength="4" size="2" onfocus="getfocus(1)" onkeyup="getNextObj(1)"/>
? <label>月：</label><input type="text" id="2" maxlength="2" size="2" onfocus="getfocus(2)" onkeyup="getNextObj(2)"/>
? <label>日：</label><input type="text" id="3" maxlength="2" size="2" onfocus="getfocus(3)" onkeyup="getNextObj(3)"/>
? <label>时：</label><input type="text" id="4" maxlength="2" size="2" onfocus="getfocus(4)" onkeyup="getNextObj(4)"/>
? <label>分：</label><input type="text" id="5" maxlength="2" size="2" onfocus="getfocus(5)" onkeyup="getNextObj(5)"/>
? <label>秒：</label><input type="text" id="6" maxlength="2" size="2" onfocus="getfocus(6)" onkeyup="getNextObj(6)"/>
</body>
</html>
?
