javascript 인증 이메일

1366 단어 JavaScripthtml
<html>
    <head>
        <script type="text/javascript">
            function validate_email(field,alerttxt)
            {
                with (field)
                {
                    apos=value.indexOf("@")
                    dotpos=value.lastIndexOf(".")
                    if (apos<1||dotpos-apos<2) 
                    {alert(alerttxt);return false}
                    else {return true}
                }
            }

            function validate_form(thisform)
            {
                with (thisform)
                {
                    if (validate_email(email,"Not a valid e-mail address!")==false)
                    {email.focus();return false}
                }
            }
        </script>
    </head>

    <body>
        <form action="submitpage.htm"onsubmit="return validate_form(this);" method="post">
            Email: <input type="text" name="email" size="30">
            <input type="submit" value="Submit"> 
        </form>
    </body>

</html>

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