Put simpleParallax and modify logo.php to merge

images/logo.php

@@ -4,26 +4,53 @@ $alea=rand(0,100);
 
 $logo='topisto_vert_tr.png';
 
-if ($alea > 5)
+$block_image = @imagecreatefrompng($logo);
+
+$width = imagesx($block_image);
+$height = imagesy($block_image);
+
+// create the destination/output image.
+$img=imagecreatetruecolor( $width, $height );
+
+// enable alpha blending on the destination image.
+imagealphablending($img, true);
+
+// Allocate a transparent color and fill the new image with it.
+// Without this the image will have a black background instead of being transparent.
+$transparent = imagecolorallocatealpha( $img, 255, 255, 255, 127 );
+imagefill( $img, 0, 0, $transparent );
+
+// copy the thumbnail into the output image.
+imagecopyresampled($img,$block_image, 0, 0, 0, 0, $width, $height, $width, $height );
+
+imagedestroy($block_image);
+
+if ($alea < 1000)
 {
-  $files = glob('logo/medium/*/topisto_vert.png');
+  $files = glob('logo/tr/topisto_*.png');
   usort($files, function($a, $b) {
     return filemtime($a) > filemtime($b);
   });
 
   shuffle($files);
  
-  $logo = $files[0];
+  $superpose = @imagecreatefrompng($files[0]);
+
+  //imagecopymerge($img, $superpose, 0, 0, 0, 0, $width, $height, 50);
+  imagecopyresampled($img,$superpose, 0, 0, 0, 0, $width, $height, imagesx($superpose), imagesy($superpose));
+
+  imagedestroy($superpose);
 }
 
-$block_image = @imagecreatefrompng($logo);
+imagealphablending($img, false);
+imagesavealpha($img,true);
 
 // ---
 // --- envoyer l'image au navigateur
 // ---
 header("Content-Type: image/png");
-imagepng($block_image);
+imagepng($img);
 
-imagedestroy($block_image);
+imagedestroy($img);
 
 ?>