<?
    //http://www.anyexample.com/programming/php/how_to_detect_internet_explorer_with_php.xml

   function ae_detect_ie()
    {
        if (isset($_SERVER['HTTP_USER_AGENT']) &&
        (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false))
            return true;
        else
            return false;
    }

    if(ae_detect_ie())
    {
        header("Location: noie.html");exit;
    }

   function isOldMobileSafari()
   {

        $browserAsString = $_SERVER['HTTP_USER_AGENT'];
        if (strstr($browserAsString, " AppleWebKit/") && strstr($browserAsString, " Mobile/")&& strstr($browserAsString, "4_2"))
        {
            return true;
        }
        else
        {
            return false;
        }
   }
?>
<div id="header">
    <div id="topred">&nbsp;</div>
    <div id="topgreen">&nbsp;</div>
    <div id="topblue">&nbsp;</div>
    <div id="topyellow">&nbsp;</div>
    <a style="display:none" href="https://plus.google.com/118197810020432218051?rel=author">G+</a>
</div>
<script defer="defer">
    //detect IOS version < 5, if yes, hide the footer since fixed pos does not work
    var isOldMobileSafari = '<?= isOldMobileSafari(); ?>';
</script>