Dynamic image transparency

Ok, along the lines of image fading, think might have found code, etc. to handle applying form of dynamic overall transparency effect to an image, and if so, could then cut out expanding pieces of an original image, and apply higher levels of transparency to the bigger instances and then do something like overlay them on each other using imagecopy() or imagecopyresize(). Either way, if you want to have a look at this page, you can tell me if it's operating/working at all - for now just trying to make sure dynamically applied transparency is working at all: http://www.blindza.co.za/transparency/index.php And, the actual code to implement the transparency is the following - from trans.php: <?php session_start(); ?> <?php $iTransValue = 127; //if form on index.php was submitted, I set session val if (isset($_SESSION["iTransValue"])) { $iTransValue = intval($_SESSION["iTransValue"]); } $img = imagecreatefrompng("./images/razor1.png"); imagealphablending($img, false); imagesavealpha($img , true); $trans_colour = imagecolorallocatealpha($img , 0, 0, 0, $iTransValue); imagefill($img , 0, 0, $trans_colour); header('Content-Type: image/png'); header("Content-Disposition: attachment; filename=\"razor1.png\""); imagepng($img); imagedestroy($img); ?> Stay well Jacob Kruger Blind Biker Skype: BlindZA '...fate had broken his body, but not his spirit...'