<div id="form" style="display:inline">
        <font color="RED" size="4px"><p>Заполните форму для оформления заказа</p></font>
	<form method="post" action="{pyro:url:site}shop/add_phone">
	    <p>Адрес: <input type="text" id="address" name="address" /></p>
	    <p>Телефон: <input type="text" id="phone" name="phone" class="phone" /></p>
	    <input type="submit" id="submit" value="Отправить" />
	</form>
 </div>

$(function() {
 
   $("#submit").click(function() {
       // получаем то, что написал пользователь
       var address    = $("#address").val();
       var phone = $("#phone").val();
       // Формируем строку запроса
       var data            = 'address='+ adress +'&phone='+ phone;

       // ajax вызов
       $.ajax({
          type: "POST",
           url: "shop/add_phone",
           data: data,
           success: function(html){ // после получения результата          
                   document.getElementbyId("<form>").style.display = "none";
               });
         }
      });
      return false;
    });
});

<div id="form" style="display:inline">
        <font color="RED" size="4px"><p>Заполните форму для оформления заказа</p></font>
    <form method="post" >
        <p>Адрес: <input type="text" id="address" name="address" /></p>
        <p>Телефон: <input type="text" id="phone" name="phone" class="phone" /></p>
        <input type="button" id="button" value="Отправить" />
    </form>
 </div> 

$(document).ready(function() {
$('#button').click(function(){
        // alert('uj');
        $.post('/shop/add_phone',
      { address:'address', phone:'phone' },function(data){
  alert(data);
 });
        //$('#form').hide();скрываем форму
  
 });
}); 

public function add_phone()
    {
     /*$user = $this->session->userdata('user_id');
     $address = $_POST['address'];
     $phone = $_POST['phone'];
     $query = "update default_profiles set mobile='".$phone."',address_line1='".$address."' where user_id=$user;";
     $sql = $this->db->query($query);*/
     $address = $this->input->post('address');
     print_r($address);
    } 

$(document).ready(function() {
$('#button').click(function(){
        $.get('/shop/add_phone', { address:'address', phone:'phone' }, function() {
    window.alert('есть');
});
		
        //$('#form').hide();
  
 });
});

echo ( $_GET['address']) ;

<script type="text/javascript" src="/pyrocms/addons/shared_addons/themes/interchange/js/jquery.js"></script>

$(document).ready(function() {

        $.post('/shop/add_phone', { mess: 'It works' });
});

echo ( $_POST['mess'] );

<h2 id="page_title">
    <?php echo lang('shop.cart_your_cart_title'); ?>
</h2>

<?php 
  foreach($phone as $info)
  {
   if($info['phone']==0) $counter=0;
  }
 if($counter==0): ?>
 <div id="form" style="display:inline">
        <font color="RED" size="4px"><p>Заполните форму для оформления заказа</p></font>
	<form method="post" >
	    <p>Адрес: <input type="text" id="address" name="address" /></p>
	    <p>Телефон: <input type="text" id="phone" name="phone" class="phone" /></p>
	    <input type="button" id="button" value="Отправить" />
	</form>
 </div>
	<?php endif; ?>
<?php
    if(!empty($proverka)):?>  
    <?php echo form_open('shop/update_cart');
          $sum=0;	?>

    <table cellpadding="6" cellspacing="0" style="width:100%" >
        <thead>
                <tr>
                   <th width="100px"><?php echo lang('shop.qty_label'); ?></th>
                  <th><?php echo lang('shop.item_title_label'); ?></th>
                  <th style="text-align:right" width="100px"><?php echo lang('shop.item_price_label'); ?></th>
                  <th style="text-align:right" width="100px"><?php echo lang('shop.sub_total_label'); ?></th>
                </tr>
        </thead>

    <?php $i = 1; ?>

    <?php foreach ($data as $items): ?>

            <?php echo form_hidden('id_item[' .$i. ']', $items['id_item']); ?>

            <tr>
              <td><?php echo form_input(array('type' => 'mytext2', 'name' => 'qty['.$i.']', 'value' => $items['qty'], 'maxlength' => '3', 'size' => '5')); ?></td>
              <td><?php echo '<a href="' .site_url(). '/shop/view_item/' .$items['id']. '">'.$items['name'].'</a>'; ?></td>
			  <?php $items['subtotal'] = $items['price'] * $items['qty']; ?>            
              <td style="text-align:right"><?php echo $items['price']; ?></td>
              <td style="text-align:right"><?php echo $items['subtotal']; ?></td>
			  <td><a href="{pyro:url:site}shop/delete/<?php echo $items['id']; ?>"><img src="/pyrocms/addons/shared_addons/themes/interchange/img/delete.png" alt="удалить из карзины" title="удалить из карзины"></a></td>
            </tr>

    <?php $i++; ?>
<?php $sum += $items['price'] * $items['qty']; ?>
    <?php endforeach; ?>
<?php //echo $i;?>
    <tr>
      <td colspan="2"> </td>
      <td class="right"><strong><?php echo lang('shop.total_label'); ?></strong></td>
	  
      <td class="right"><?php  echo $sum;//echo $this->cart_m->format_number($this->cart->total()); ?></td>
    </tr>

    </table>
    <p><?php echo form_submit('', lang('shop.cart_update_label')); ?></p>
    <p>
        <a href="{pyro:url:site}shop/check_out" onclick="return confirmDelete();">
		<img src="/pyrocms/addons/shared_addons/themes/interchange/img/checkout.jpg" alt="оформить заказ" title="оформить заказ" width="130" height="40" /></a>
		<?php //echo lang('shop.checkout_label'); ?></a>
    </p>
<?php else : ?>
    <h3>
        <?php echo lang('shop.cart_no_items'); ?>
    </h3>	
<?php endif; ?>
<script type="text/javascript">
$(document).ready(function() {
         $.post('shop/add_phone', { mess: 'It works' });
});
</script>
<script type="text/javascript">
function confirmDelete() {
 something = prompt ("Введите ваше имя:", defaultText="");
 if (something) {
if (confirm("Оформить заказ?")) {
   return true;
  } else {
  return false;
  }
 }
 else {return false;}
}

$.post('sript.php', { var: 'it works' });

$(document).ready(function() {
    $.post('/pyrocms/addons/shared_addons/themes/interchange/data/add_phone.php', { mess: 'it works' });
});

<?php
$this->load->database();
$test = !empty( $_POST['mess'] ) ? $_POST['mess'] : NULL;
$query = "update default_profiles set phone=$test";
$sql = $this->db->query($query);
?>

<?php
$db['local']['hostname'] = 'localhost';
$db['local']['username'] = 'name';
$db['local']['password'] = 'parol';
$db['local']['database'] = 'shop1';
$db['local']['dbdriver'] = 'mysql';
$db['local']['dbprefix'] = '';
$db['local']['stricton'] = TRUE;
$db['local']['active_r'] = TRUE;
$db['local']['pconnect'] = TRUE;
$db['local']['db_debug'] = TRUE;
$db['local']['cache_on'] = FALSE;
$db['local']['cachedir'] = '';
$db['local']['char_set'] = 'utf8';
$db['local']['dbcollat'] = 'utf8_unicode_ci';
$db['local']['port'] 	 = 3306;
$test = $_POST['mess'];
$query = "update default_profiles set phone=$test";
$sql = $this->db->query($query);
//mysql_query("INSERT INTO WILD_CAT.test SET test=" . mysql_escape_string( $test ) . ";");
?>

$.post('shop/add_phone', { mess: 'It works' }, function(data) {alert(data)});

echo $this->input->post('mess');