<?php
/**
 * c_saveViewport.php
 * Created by Komma Mediadesign.
 * Author: Mike
 * Date: 2/28/13
 */
session_start();
$offsetTop = 0;
if(isset($_GET['offsetTop']))
{
    $offsetTop = $_GET['offsetTop'];
}
$_SESSION['viewport']['top'] = $offsetTop;