<?php
    /* load header template */
    include "include/templates/header1.php";
    /* switch statement to get page content */
    if ($_GET['unit'])
    {
        // put querystring variable into local variable
        $unit_selection = $_GET['unit'];
        //  adds backslashes infront of variable
        $unit_selection = addslashes($unit_selection);
        
        switch ($unit_selection) 
        {
            case 1:
                $pageContent = "unit1.php";
                break;
            case 2:
                $pageContent = "unit2.php";
                break;
            case 3:
                $pageContent = "unit3.php";
                break;
            case 4:
                $pageContent = "unit4.php";
                break;
            case 5:
                $pageContent = "unit5.php";
                break;
            case 6:
                $pageContent = "unit6.php";
                break;
            case 7:
                $pageContent = "unit7.php";
                break;
            case 8:
                $pageContent = "unit8.php";
                break;
            default:
                $pageContent = "home.php";
                break;
        }
    }
    else
    {
        $pageContent = "home.php";
    }
    
    // load page content from switch statement
    include $pageContent;
    // load footer template
    include "include/templates/footer6.php";
?>