function change_lang(old, lng, lng1)
  {
	href = window.location.href;

	if(b = href.split('dillers').length > 1 && old == 'rus')
 {
		alert('Sorry, no such file');		
	}
 else {
	b = href.split(old);	
 
	href = b.join(lng);

	href = href.split('#')[0];

window.location.href=href;
	}

}