search

Home  >  Article  >  Web Front-end  >  How to implement an example of automatically jumping focus

How to implement an example of automatically jumping focus

巴扎黑
巴扎黑Original
2017-05-21 18:46:061234browse

<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<title>html－www.51windows.Net</title> 
</head> 
<body> 
以下四个文本框，每个限输入四个字符，输入完后自动跳到下一文本框 
<script ID="clientEventHandlersJS" LANGUAGE="javascript"> 
<!-- 
function T1_onkeyup() { 
if(document.card.T1.value.length==4){ 
document.card.T2.focus(); 
} 
} 
function T2_onkeyup() { 
if(document.card.T2.value.length==4){ 
document.card.T3.focus(); 
} 
} 
function T3_onkeyup() { 
if(document.card.T3.value.length==4){ 
document.card.T4.focus(); 
} 
} 
//--> 
</script> 
<form method="POST" name="card" action> 
输入字符： 
<input type="text" name="T1" size="4" maxlength="4" LANGUAGE="javascript" onkeyup="return T1_onkeyup()">- 
<input type="text" name="T2" size="4" maxlength="4" LANGUAGE="javascript" onkeyup="return T2_onkeyup()">- 
<input type="text" name="T3" size="4" maxlength="4" LANGUAGE="javascript" onkeyup="return T3_onkeyup()">- 
<input type="text" name="T4" size="4" maxlength="4"> 
</form> 
</body> 
</html> 
<p style="position: absolute; top: 10; right: 10; width: 148; height: 18;cursor:hand"> 
<input type="button" name="Button" value="查看源代码" onClick= &#39;window.location = "view-source:" + window.location.href&#39;></p>

The above is the detailed content of How to implement an example of automatically jumping focus. For more information, please follow other related articles on the PHP Chinese website!

Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：Automatically check and replace characters in text boxesNext article：Automatically check and replace characters in text boxes

Related articles

See more