function bookmark()
{
var title = "Arenka";
var url = "http://www.arenka.ru/";

if (window.sidebar)
window.sidebar.addPanel(title, url, "");
else if(window.opera && window.print)
{
var elem = document.createElement('a');
elem.setAttribute('href',url);
elem.setAttribute('title',title);
elem.setAttribute('rel','sidebar');
elem.click();
}
else if(document.all)
window.external.AddFavorite(url, title);
else
alert("Попробуйте добавить вручную");

return false;
}


function add_bookmark(){
	if (document.all){
		var _url = location.href;
		var desc = document.title;
		window.external.AddFavorite(_url, desc);
	} else {
		alert("Âàø áðàóçåð íå ïîääåðæèâàåò àâòîìàòè÷åñêîå ñîçäàíèå çàêëàäîê. \n\n×òîáû äîáàâèòü ñàéò âðó÷íóþ, çàéäèòå â ïóíêò ìåíþ \"Çàêëàäêè\"\nè âûáåðèòå ïóíêò \"Äîáàâèòü â çàêëàäêè\".");
	}
	return false; 
}

function $() {
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++){
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
    if (arguments.length == 1)
      return element;
    elements.push(element);
  }
  return elements;
}


function isset(v)
{
	if(v == undefined){
		return false;
	} else {
		return true;
	}
}

function empty(v)
{
	if(isset(v)&&v!=""){
		return false;
	} else {
		return true;
	}
}

function hi(imageName,imageFile) {
	if (document.images) document.images[imageName].src = imageFile;
}

function highlight(obj, oo){
	if (oo == true){
		obj.oldClassName = obj.className;
		obj.className += " hover";
	} else {
		obj.className = obj.oldClassName;
	}
}

function toggleFolder(obj){
	obj = $(obj);
	if (obj.style.display=='block'){
		obj.style.display='none';
	} else {
		obj.style.display='block';
	}
}

function switchInput(maxl, input, nextInput) {
	if(input.value.length == maxl) $(nextInput).focus();
}