function zobrazSkryj(idecko){

	el=document.getElementById(idecko).style;

	

	if(el.display == 'block'){

    el.display='none'; 

    url_link = document.URL;

  }

  else{

    el.display='block';

      if(idecko == 1) url_link = document.URL+"#vzornik";

      if(idecko == 2) url_link = document.URL+"#reference";

      if(idecko == 5) url_link = document.URL+"#podklady";

      if(idecko == 4) url_link = document.URL+"#fotogalerie";

    location.replace(url_link);

    }

	

	

}