PHP Contact Forum SORUNU

<script> 
  function clearForms() 
  { 
    var i; 
    for (i = 0; (i < document.forms.length); i++) { 
      document.forms[i].reset(); 
    } 
    $('.alert-box.success').fadeOut(200); 
  } 
  </script> 
  <?php 
  	 
  	$name = trim($_POST['name']); 
  	$email = $_POST['email']; 
  	$comments = $_POST['comments']; 
  	 
  	$site_owners_email = 'alici@siteadi.com'; // Replace this with your own email address 
  	$site_owners_name = 'alici'; // replace with your name 
  	 
  	if (strlen($name) < 2) { 
  		$error['name'] = "Please enter your name";	 
  	} 
  	 
  	if (!preg_match('/^[a-z0-9&\'\.\-_\+]+@[a-z0-9\-]+\.([a-z0-9\-]+\.)*+[a-z]{2}/is', $email)) { 
  		$error['email'] = "Please enter a valid email address";	 
  	} 
  	 
  	if (strlen($comments) < 3) { 
  		$error['comments'] = "Please leave a comment."; 
  	} 
  	 
  	if (!$error) { 
  		 
  		require_once('phpMailer/class.phpmailer.php'); 
  		$mail = new PHPMailer(); 
  		 
  		$mail->From = $email; 
  		$mail->FromName = $name; 
  		$mail->Subject = "Contact Form"; 
  		$mail->AddAddress($site_owners_email, $site_owners_name); 
  		$mail->Body = $comments; 
  		 
  		$mail->Send(); 
  		 
  		echo "<div data-alert class='alert-box success'>Thanks " . $name . ". Your message has been sent.<a href='#' class='close' onclick='clearForms()'>×</a></div>"; 
  		 
  	} # end if no error 
  	else { 
   
  		$response = (isset($error['name'])) ? "<div class='alert-box alert'>" . $error['name'] . "</div> \n" : null; 
  		$response .= (isset($error['email'])) ? "<div class='alert-box alert'>" . $error['email'] . "</div> \n" : null; 
  		$response .= (isset($error['comments'])) ? "<div class='alert-box alert'>" . $error['comments'] . "</div>" : null; 
  		 
  		echo $response; 
  	} # end if there was an error sending 
   
  ?>