joomla send mail

<?php
if($_REQUEST['send_mail'] == 1) {
jimport('joomla.mail.helper');
$mail = JFactory::getMailer();
$config =& JFactory::getConfig();

$pageURL = 'http';
$pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];

$from = $mail->From;

$recipient = array($mail->From);

if($_REQUEST['mail']){
  $replyto = $_REQUEST['mail'];
}
else {
  $replyto = $from;
}

$mail->IsHTML(true);
$mail->addRecipient($recipient);
$mail->setSender($from);
$mail->ClearReplyTos();
$mail->addReplyTo($replyto);
$mail->setSubject(JMailHelper::cleanSubject($config->getValue( 'config.sitename' ), ""));

// Body
$body = "<table>";
if($_REQUEST['txtFirstName']){
$body .= "<tr><td><b>First Name: </b></td><td>".$_REQUEST['txtFirstName']."</td></tr>";
}
if($_REQUEST['txtLastName']){
$body .= "<tr><td><b>Last Name: </b></td><td>".$_REQUEST['txtLastName']."</td></tr>";
}
if($_REQUEST['company']){
$body .= "<tr><td><b>Company/Organization name: </b></td><td>".$_REQUEST['company']."</td></tr>";
}
if($_REQUEST['txtPhone']){
$body .= "<tr><td><b>Phone number: </b></td><td>".$_REQUEST['txtPhone']."</td></tr>";
}
if($_REQUEST['mail']){
$body .= "<tr><td><b>Email address: </b></td><td>".$_REQUEST['mail']."</td></tr>";
}
if($_REQUEST['ddlCountry']){
$body .= "<tr><td><b>Country: </b></td><td>".$_REQUEST['ddlCountry']."</td></tr>";
}
if($_REQUEST['ddlEvent']){
$body .= "<tr><td><b>Event: </b></td><td>".$_REQUEST['ddlEvent']."</td></tr>";
}
if($_REQUEST['txtOtherEvent']){
$body .= "<tr><td><b>Other Event: </b></td><td>".$_REQUEST['txtOtherEvent']."</td></tr>";
}
if($_REQUEST['isCustomer']){
$body .= "<tr><td><b>Are you a LiveU customer?: </b></td><td>".$_REQUEST['isCustomer']."</td></tr>";
}
if($_REQUEST['isServer']){
$body .= "<tr><td><b>Do you have a LiveU server?: </b></td><td>".$_REQUEST['isServer']."</td></tr>";
}
if($_REQUEST['isRequire']){
$body .= "<tr><td><b>Will you require additional equipment?: </b></td><td>".$_REQUEST['isRequire']."</td></tr>";
}

$body .= "<tr>
              <td style='font-weight: bold;'>Lead From:</td>
              <td>Web Lead from: Book Event</td>
          </tr>";

if($_REQUEST['txtDetails']){
$body .= "<tr><td><b>Details: </b></td><td>".$_REQUEST['txtDetails']."</td></tr>";
}

if($_REQUEST['txtMsg']){
$body .= "<tr><td><b>Comments: </b></td><td>".$_REQUEST['txtMsg']."</td></tr>";
}

// A null body will raise a mail error, so always add at least a signature.
$body .= "<tr><td>------</td></tr>" . "<tr><td>" . $config->getValue( 'config.sitename' ) ."</td></tr>";
$body .= "</table>";
$body = JMailHelper::cleanBody($body);


$mail->setBody($body);

mail_send($mail);
}
function mail_send(&$mail)
    {
$app = JFactory::getApplication();
        if (($error = $mail->Send()) !== true)
        {
            $info = empty($mail->ErrorInfo) ? $error->getMessage() : $mail->ErrorInfo;
            $msg = JText::_($GLOBALS["COM_NAME"] . "_ERR_SENDING_MAIL") . ". " . $info;

                        //$app->redirect($pageURL, $msg, 'message');
                        JFactory::getApplication()->enqueueMessage($msg);
            //JLog::add($msg, JLog::ERROR, get_class($this));
            return false;
        }

        // Notify email send success
                //$app->redirect($pageURL, 'Email sent', 'message');
                //JFactory::getApplication()->enqueueMessage('Email sent');
                //JFactory::getApplication()->redirect("/index.php?option=com_content&Itemid=280&view=article&id=94");
        return true;
    }
?>