function generatethumb($src, $destination, $newwidth, $newheight)
{
    $image = new \Eventviva\ImageResize($src);
    $image->resize($newwidth, $newheight, 1);
    $image->save($destination);
}
 private static function createThumb($source, $target)
 {
     include_once getcwd() . '/scripts/external/ImageResize.php';
     $image = new \Eventviva\ImageResize($source);
     $image->resize(100, 75);
     $image->save($target);
 }