JS防止用户多次提交

　2012-12-14 15:10:17　来源：WEB开发网　　　

核心提示：<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>表单提交后按钮禁用</title><s

<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>表单提交后按钮禁用</title>
<script type="text/javascript">
function sub() {
	document.forms[0].elements[0].disabled = true;
	document.forms[0].submit();
}
</script>
</head>
<body>
	<form action="login.action" method="post">
		<input type="button" name="btn" value="提交表单" onclick="return sub();" />
	</form>
</body>
</html>

表单提交后，提交按钮不可用