$dest_y = $this->arg('avatar_crop_y') ? $this->arg('avatar_crop_y'):0;
$dest_w = $this->arg('avatar_crop_w') ? $this->arg('avatar_crop_w'):$file_d;
$dest_h = $this->arg('avatar_crop_h') ? $this->arg('avatar_crop_h'):$file_d;
$dest_y = $this->arg('avatar_crop_y') ? $this->arg('avatar_crop_y'):0;
$dest_w = $this->arg('avatar_crop_w') ? $this->arg('avatar_crop_w'):$file_d;
$dest_h = $this->arg('avatar_crop_h') ? $this->arg('avatar_crop_h'):$file_d;