My php/html submit button does not register being pressed

My php/html submit button does not register being pressed

Below is my code for register.php on my website.
http://www.midnightnachos.com/gs/register.php is the URL. This code allows
to user to register for my website, creating a MySQL entry for username,
email, password, etc on click the submit button. THe button is named "reg"
and uses a $_POST. Upon clicking the submit button the php runs through
multiple if statements to ensure the information the user entered is valid
and does not preexist. If a user exists, or an error is made in submission
it sets php variable $errormessage and is supposed to echo it out. Right
now, my SUBMIT button does not act like it is being pressed. No error
messages, no SQL row is inserted, nothing.
<?php
if( $_POST['reg']){
/* Make sure values are correct and valid */
$getuser = $_POST['user'];
$getemail = $_POST['email'];
$getpass = $_POST['password'];
$getrepass = $_POST['retypepassword'];
/* Check to see if username entererd */
if($getuser){
/* Check to see if email entererd */
if($getemail){
/* Check to see if password entererd */
if($getpass){
/* Check to see if retyped password entererd */
if($getrepass){
/* Check to see if passwords are the EXACT same */
if($getpass === $getrepass){
/* Check to see if VALID email is entered */
if( (strlen($getemail) >= 7) && (strstr($getemail,
"@")) && (strstr($getemail, ".")) ){
/* Email is valid mysql query */
require ("./connect.php");
$query = mysql_query("SELECT * FROM users
WHERE username ='$getuser'");
$numrows = mysql_num_rows($query); /* Is
mysql returns zero, user doesnot exist. */
/*check if email exists */
if($numrows == 0) {
$query = mysql_query("SELECT * FROM users
WHERE email ='$getemail'");
$numrows = mysql_num_rows($query);
if($numrows == 0){
$date = date("F d, Y");
$code = md5(rand());
mysql_query("INSERT INTO users VALUES
('', '$getuser', '$getpass',
'$getemail', '0', '$code', '$date')");
$query = mysql_query ("SELECT ALL *
FROM users WHERE username =
'$getuser'");
$numrows = mysql_num_rows($query);
/* Check to make user was generated */
if($numrows == 1){
$site =
"http://www.midnightnachos.com/gs";
$webmaster = "universitydb@gmail.com";
$headers = "From: $webmaster";
$subject = "Activate Your Account";
$message = "Thanks for registering.
Click the link below to activate your
account.\n";
$message .=
"$site/activate.php?user=$getuser&code=$code\n";
$message .= "You must activate your
account to login.";
if (mail($getemail, $subject,
$message, $headers)){
$errormessage = "You have been
registered. You must activate your
account from the activation link
sent to your email.";
echo $form;
$getuser = "";
$getpass = "";
}
else
echo "An error has occured. Your
activation email was not sent.";
}
else
$errormessage = "An error has
occurred. Account not created.";
}
else
$errormessage = "Email address already in
use.";
}
else
$errormessage = "Username already exists.";
mysql_close;
}
else
$errormessage = "You did not enter a valid email.";
}
else
$errormessage = "Your passwords did not match.";
}
else
$errormessage = "You must retype your password.";
}
else
$errormessage = "You must enter your password.";
}
else
$errormessage = "You must enter an email to register.";
}
else
$errormessage = "You must enter a username to register.";
echo $form;
}
$form=" <div class='splash'>
<h1>Register for Game Swap</h1>
<p>Register for Game Swap to browse what games other local users have
added to their library. Propose trades, chat, and meet to swap games. Your
email address will only be used to notify you when someone has sent a
trade offer. No newsletters, advertisements or updates will be sent by us.
We will also never sell your contact information to third parties.</p>
<br />
<p align='center'>Fill out the form below to get started</p>
<br />
<form align='center' action='./register.php' method='POST'>
<input type='text' name='user' value='$getuser' class='box' size='30'
placeholder='Username' /><br />
<input type='password' name='password' class='box' size='30'
placeholder='Password' /><br />
<input type='password' name='retypepassword' class='box' size='30'
placeholder='Retype Password' /><br />
<input type='text' name ='email' value='$getemail' class='box'
size='30' placeholder='Email Address' /><br />
<input type='button' name='reg' class='loginbutton' value='Register'
/><br />
</form>
</div>
<br/> $errormessage";
echo $form;
?>
</body>
</html>