// Global Variables  
$image_dir = "$_SERVER[DOCUMENT_ROOT]/images"; // directory on server  
$image_relative_path = '/images'; // path to images relative to script  
$file_types = array('jpg','jpeg','gif','png');  
$image_time = '4000'; // seconds each image will display (4000 = 4 seconds)  
  
if($handle = opendir($image_dir)) {  
    while (false !== ($file = readdir($handle))) {  
    if ($file != "." && $file != "..") {  
        $ext_bits = explode(".",$file); // finds file extensions  
        foreach($ext_bits as $key => $value){  
            if(in_array($value,$file_types)){  
                $image_rotation .= ' 
<li><img src="'.$image_relative_path.'/'.$file.'"></li> 
 
';  
            }  
        }  
    }  
}  
closedir($handle);  
}