<? 

// tento skript zmensi zadanou fotku na rozmery zaslane pres GET
 $imgname = $_GET["imgname"];

 @ $t_width = $_GET["w"];
 @ $t_height = $_GET["h"];


if(isset($imgname)) { // mam nazev fotky

// if( (stristr($imgname,".jpg")) || (stristr($imgname,".JPG")) || (stristr($imgname,".jpeg")) || (stristr($imgname,".JPEG")) ) {


 //   $imgname = "images/katalog-fotogalerie/".$imgname;

   // $srcimage = @ImageCreateFromJPEG ($imgname); /* Attempt to open */
    
    
     $image_type = strstr($imgname, '.');

	//SWITCHES THE IMAGE CREATE FUNCTION BASED ON FILE EXTENSION
		switch($image_type) {
			case '.jpg':
				$srcimage = imagecreatefromjpeg($imgname);
				break;
            case '.JPG':
				$srcimage = imagecreatefromjpeg($imgname);
				break;
			case '.jpeg':
				$srcimage = imagecreatefromjpeg($imgname);
				break;
            case '.JPEG':
				$srcimage = imagecreatefromjpeg($imgname);
				break;

			case '.png':
				$srcimage = imagecreatefrompng($imgname);
				break;
			case '.PNG':
				$srcimage = imagecreatefrompng($imgname);
				break;

			case '.gif':
				$srcimage = imagecreatefromgif($imgname);
				break;
            case '.GIF':
				$srcimage = imagecreatefromgif($imgname);
				break;

			default:
				return false;
                exit;
			}
    
    
    if (!$srcimage) { // See if it failed
                   
                     return false;
                     exit;
                    }


     else {
           header("Content-type: image/jpeg");

           $width  = imagesx($srcimage);  // source image width & height
           $height = imagesy($srcimage);

         /*  
           if($height > $width) { // na vysku
           	
		           	$t_height = 50;
		           	$t_width = floor(($width * $t_height) / $height); // zachovam pomer stran originalu
           }
           
             else {
             	   $t_width = 50;  // thumbnail width 		   
		           $t_height = floor($t_width / ($width / $height)); // zachovam pomer stran originalu
             }
           */
		   
		   
           $destimage = imagecreatetruecolor($t_width,$t_height);
           
           //CREATES IMAGE WITH NEW SIZES
	        //   $thumb = imagecreatetruecolor($newwidth, $newheight);

		       //imagecopyresized ($destimage,$srcimage,0,0,0,0,$t_width,$t_height,$width,$height);
		       imagecopyresampled($destimage,$srcimage,0,0,0,0,$t_width,$t_height,$width,$height);
           ImageJPEG($destimage);
           ImageDestroy($destimage);


         }

	 //  } //end if(stristr($imgname,".jpg"))
	   
	  //  else echo "fail";

   } // end if(isset($imgname))

           
?>