View files in browser

[system]

I have this, and really what I want to do is end up showing any file type possible in browser. My code just gives a blank page. path end appears as so in url:
[php]?openfile&&path=/upload/rodesigndoc.doc&&file=rodesigndoc.doc[/php]
[php]<?php
if ($_GET[‘action’] == “openfile”) {
$file = $_GET[‘file’];
$path = $_GET[‘path’];
$file_extension = strtolower(substr(strrchr($file,"."),1));
//echo $file_extension;
//exit;
if ($file_extension == “.doc” || $file_extension == “.pdf”) {
?>


<?php
}
if ($file_extension == “.jpg” || $file_extension == “.gif” || $file_extension == “.png” || $file_extension == “.jpeg”) {
LoadJpeg($path);
}
}
function LoadJpeg($imgname) {
/* Attempt to open */
$im = @imagecreatefromjpeg($imgname);

        /* See if it failed */
        if(!$im) {
            /* Create a black image */
            $im  = imagecreatetruecolor(150, 30);
            $bgc = imagecolorallocate($im, 255, 255, 255);
            $tc  = imagecolorallocate($im, 0, 0, 0);

            imagefilledrectangle($im, 0, 0, 150, 30, $bgc);

            /* Output an error message */
            imagestring($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
        }

        return $im;
    }

    header('Content-Type: image/jpeg');

    $img = LoadJpeg('bogus.image');

    imagejpeg($img);
    imagedestroy($img);
?>    [/php]