Add auto email reply to this form

[netanel]

Hi everybody.
I have this registration form and I want to add auto replay after user fill the fields and press send. can someone help me with this issue? thanks a lot!
This is the code:

<?php
// Exit if accessed directly
if ( !defined( 'ABSPATH' ) ) {
	exit;
}
/**
 * Full Content Template
 *
Template Name:  Full Width Page (no sidebar)
 */
get_header(); ?>
<div id="content-full" class="grid col-940">
  <div class="post-entry">
    <?php
	global $wpdb;
    $table_name = $wpdb->prefix . 'login';
    $count_query = "select count(*) from $table_name";
    $num = $wpdb->get_var($count_query);
    $arr = str_split(str_pad($num, 4, "0195", STR_PAD_LEFT)); 
	//print_r($arr);
	if(isset($_POST['uname']) && $_POST['email'] && $_POST['phone']){
		$uname = $_POST['uname'];
		$email = $_POST['email'];
		$phone = $_POST['phone'];
			$q = "INSERT INTO wp_login(uname, email, phone) VALUES ('$uname','$email','$phone')";
			mysql_query($q)or die(mysql_error());
			echo "!תודה רבה. ההרשמה בוצעה בהצלחה. יחד נשנה את עתיד השומרון";
			echo "<style>
			.post-entry {
    clear: both;
    font-size: 30px;
    background: #8EC63F;
    padding: 10px;
    margin: 60px 20px;
    text-align: center;
    color: #fff;
}
			</style>";
		 exit;
   }
?>
    <div id="count">
      <div class="divf" style="border-top-left-radius: 10px;border-bottom-left-radius: 10px;"> <?php echo $arr['0'];?> </div>
      <div class="divf"> <?php echo $arr['1'];?> </div>
      <div class="divf"> <?php echo $arr['2'];?> </div>
      <div class="divf" style="border-top-right-radius: 10px;border-bottom-right-radius: 10px;"> <?php echo $arr['3'];?> </div>
    </div>
    <form name="myform" action="" method="POST">
        <div id="form">
        <ul>
          <li><input type="email" name="email" id="uemail" required></li>
          <li><input type="text" name="phone" id="upass" required></li>
          <li><input type="text" name="uname" placeholder="" id="uname" required></li>
          </ul>
          
          <div class="fb-share-button" data-href="http://demski.co.il/" data-layout="icon"><a href="http://www.facebook.com/sharer.php?u=http://demski.co.il
&t=<שריה דמסקי, עושה באמת>"><img src="<?php bloginfo('template_url')?>/images/facebook_btn.png"> </a></div>
      </div>
        </div>

    </form>
    
            
  </div>
  </section>

</style>
</div>
</div>
<!-- end of #content-full --> 
<script type="text/javascript">
function submitform()
{	
	code="";
	field1 = document.getElementById('uname').value;
	field2 = document.getElementById('uemail').value;
	field3 = document.getElementById('upass').value;
	if(field3=="" && field1=="" && field2==""){
		alert("נא למלא שם \n נא להוסיף כתובת מייל תקינה \n נא להוסיף מספר טלפון");
		return ;
	}
	if(field1=="" || field1==null){
		alert("נא למלא שם");
		return ;
	}
	if(field2=="" || field2==null){
		alert("נא להוסיף כתובת מייל תקינה");	
		return ;
	}
	if(field3=="" || field3==null){
		alert("נא להוסיף מספר טלפון");
		return ;
	}
	
	
	if(field1!="" && field2!="" && field3!=""){
		document.myform.submit();
	}
  
}


</script>