====== Texteingabefelder prüfen (einfache Version) ======

<file js checkform.js>
function CheckForm()
{
	var Form = document.Login;

	if( Form.email.value == "")
	{
		alert( "Bitte geben Sie Ihre E-Mail-Adresse ein." );
		Form.email.focus();
		return false;
	}

	if( Form.password.value == "")
	{
		alert( "Bitte geben Sie Ihr Passwort ein." );
		Form.password.focus();
		return false;
	}
}
</file>

----

<file html login_form.html>
    <form id="Login" method="post" onsubmit="return CheckForm();">
        <table>
            <tr>
                <th>E-Mail-Adresse:</th>
                <td><input type="email" name="Benutzername" /></td>
            </tr>
            <tr>
                <th>Passwort:</th>
                <td><input type="password" name="Passwort" /></td>
            </tr>
            <tr>
                <th>&nbsp;</th>
                <td><input type="submit" name="submit" value="Login" /></td>
            </tr>
        </table>
    </form>
</file>