验证表单的标准JavaScript

来源：互联网发布：淘宝买折扇推荐编辑：程序博客网时间：2024/05/17 00:13

验证表单的标准JavaScript

原文地址

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>

<head>

<title>Untitled Document</title>

function validate(m,n)

{

var flag = true;

if(m.value == "" && n == 0)

{

document.getElementById("username_info").innerHTML = "用户名不为能空";

flag = false;

}

else

{

document.getElementById("username_info").innerHTML = "";

}

if(m.value.length < 6 && n == 0)

{

document.getElementById("username_info").innerHTML = "用户名长度不能小于6";

flag = false;

}

else

{

document.getElementById("username_info").innerHTML = "";

}

if(m.value == "" && n == 1)

{

document.getElementById("password_info").innerHTML = "密码不能为空";

flag = false;

}

else

{

document.getElementById("password_info").innerHTML = "";

}

if(m.value.length < 6 && n == 1)

{

document.getElementById("password_info").innerHTML = "密码长度不能小于6";

flag = false;

}

else

{

document.getElementById("password_info").innerHTML = "";

}

return flag;

}

</script>

</head>

<body>

<form>

<br/>

<br/>

<br/>

</form>

</div>

</body>

</html>