如何用JS设置form的onSubmit
1个回答
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<!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>
<script type="text/javascript">
function js_onSubmit()
{
if(document.getElementById("id1").value=="")
{
alert("提交信息为空!");
document.getElementById("id1").focus();
return false;
}
else
{
alert("提交成功!");
return true;
}
}
</script>
</head>
<body>
<form action="" method="post" onsubmit="return js_onSubmit();">
提交信息:<input id="id1" name="text" type="text" />
<input name="" type="submit" value="提交" />
</form>
</body>
</html>
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