表单递交合法性检测-Email

网络整理 - 09-10
以下代码加入HTML的<body>区:
<script language="javascript">
<!-- Begin
function chk(email, formname)
{
invalid = "";

if (!email)
invalid = "请输入您的Email地址。";

else {

if ( (email.indexOf("@") == -1) || (email.indexOf(".") == -1) )
invalid += "\n\nEmail地址不合法。应当包含'@'和'.';例如('.com')。请检查后再递交。";

if (email.indexOf("your email here") > -1)
invalid += "\n\nEmail地址不合法,请检测您的Email地址,在域名内应当包含'@'和'.';例如('.com')。";

if (email.indexOf("\\") > -1)
invalid += "\n\nEmail地址不合法,含有非法字符(\\)。";

if (email.indexOf("http://www.cuoxin.com/") > -1)
invalid += "\n\nEmail地址不合法,含有非法字符(/)。";

if (email.indexOf("'") > -1)
invalid += "\n\nEmail地址不合法,含有非法字符(')。";

if (email.indexOf("!") > -1)
invalid += "\n\nEmail地址不合法,含有非法字符(!)。";

if ( (email.indexOf(",") > -1) || (email.indexOf(";") > -1) )
invalid += "\n\n只输入一个Email地址,不要含有分号和逗号。";

if (email.indexOf("?subject") > -1)
invalid += "\n\n不要加入'?subject=...'。";

}
if (invalid == "")
{
return true;
}
else
{
alert("输入的Email可能包含错误:" + invalid);
return false;
}

}
// End -->
</script>


<form method="post" action="submit.asp" >
<div>
<input type="text" value="your email here">
<input type="submit" value="Submit">
</div>
</form>