preCheckSearchForm = function(){
	var element = document.getElementById('searchstr');
	if ( (element.value == 'Поиск по сайту') || (element.value == '') ){
		return false;
	}
	return true;
}
function addBookmark(url, title) 
{ 
  if (!url) url = location.href; 
  if (!title) title = document.title; 
   
  //Gecko 
  if ((typeof window.sidebar == "object") && (typeof window.sidebar.addPanel == "function")) window.sidebar.addPanel (title, url, ""); 
  //IE4+ 
  else if (typeof window.external == "object") window.external.AddFavorite(url, title); 
  //Opera7+ 
  else if (window.opera && document.createElement) 
  { 
    var a = document.createElement('A'); 
    if (!a) return false; //IF Opera 6 
    a.setAttribute('rel','sidebar'); 
    a.setAttribute('href',url); 
    a.setAttribute('title',title); 
    a.click(); 
  } 
  else return false; 
   
  return true; 
}