I mean, I just need to show my searchform in lightbox. I can do it anywhere with a shortcode. But it works bad in the NivoLightbox.
I dont want to make a page, insert there my searchform, and then integrate it with an iframe into lightbox.
Cuz it will cause me to cut header and fotter using <div>s, it will be strange looking thing on mobile devices, and so on.
Thats why I said, that shortcode way will be more natural and logic.
And it is so, just some Mapsearch-navigation problems.