index.xhtml
<?php
header("Vary: Accept");
if (array_key_exists("HTTP_ACCEPT", $_SERVER) &&
stristr($_SERVER["HTTP_ACCEPT"], "application/xhtml+xml") ||
stristr($_SERVER["HTTP_USER_AGENT"], "W3C_Validator")
)
{
header("Content-type: application/xhtml+xml");
print("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
}
else
{
header("Content-type: text/html; charset=utf-8");
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Log In Here!</title>
<script type="text/javascript" src="scripts/core.js"></script>
<script type="text/javascript" src="scripts/form_handler.js"></script>
<link rel="stylesheet" type="text/css" href="css/form_handler.css" />
</head>
<body>
<h1>Log In Here!</h1>
<form method="get" action="scripts/login.php">
<fieldset>
<legend>Login</legend>
<div>
<label for="user-text">User:</label>
<input type="text" id="user-text" name="user-text" />
<span class="error-message not-shown">You idiot!</span>
</div>
<div>
<label for="passwd">Password:</label>
<input type="password" id="passwd" name="user-passwd" />
<span class="error-message not-shown">Your really stupid idiot!</span>
</div>
<input type="submit" value="Log In" />
</fieldset>
</form>
<p>
Last updated <?php echo date("Y-m-d", filemtime($_SERVER['SCRIPT_FILENAME']))."\n"; ?>
<a href="http://validator.w3.org/check?uri=referer">XHTML</a>
<a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a>
</p>
</body>
</html>