install

<?PHP
if ( !file_exists( "oz-library/config.php" ) )
    {
        session_start();


        $now = gmdate('D, d M Y H:i:s') . ' GMT';
        header("Expires: $now");
        header("Last-Modified: $now");
        header("Cache-Control: no-cache, must-revalidate");
        header("Pragma: no-cache");

        if (file_exists("oz-install/index.php"))
            {
        $_SESSION['act']='install';
                ?><script>
alert('please wait');
  location.href ='oz-install';
</script>
<?php
            }
        exit;
    }
else {
    require_once( 'oz-library/config.php' );
    echo "<script language=\"Javascript\">location.href = 'oz-content/basic/';</script>\n";
}
?>

<!--oz-install/index.php-->
<?php
session_start();

if(isset($_SESSION['act']=='install'))
{
//,.,,,,,,,,
}else{
?><script>
alert('please wait');
  location.href ='../index.php';
</script>
<?php

}