Php Emailer/contact System - An email or contact system for your site

<? if (!$_GET['send'])
{
?>
<form action="mailform.php?send=1" method="post">
<input type=hidden name=EmailTo value="You@mail.com"> <!-- // Change to your email address // -->
Your Name: <input type=text name=Name><br>
Subject: <input type=text name=Subject><br>
Your Email: <input type=text name=Email><br>
Your Site: <input type=text name=Site><br>
Message: <br><textarea name=Message rows=6 cols=30></textarea><br>
<input type=submit value="Send"> <input type=reset value="Reset"></form>
<?
}
else
{
$Name = $_POST['Name'];
$Subject = $_POST['Subject'];
$Email = $_POST['Email'];
$Site = $_POST['Site']; $Message=$_POST['Message'];
$align = $_POST['align'];
$to = "$EmailTo";
$subject = "$Subject";
$body = "$Message\n\n\n$Site\nBy: $Name";
$headers = "From: $Email\n";
$worked = @mail($to,$subject,$body,$headers);
if($worked)
{
?>
<p>Your message has been sent to the webmaster. You should recieve a reply shortly. </p>
<p><a href="index.php" target="_self">Go Back To Index?</a></p>
<?
}
else {
?>
<p>Your message was unable to be sent</p>
<p><a href="java script: go.history(-1);">Click here to go back</a></p>
<?
}
}
?>