function AddBookMark (url, name) {
	if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4))
		window.external.AddFavorite(url, name);
	else  
		alert('Для добавления страницы в избранное нажмите Ctrl+D');
	return false;
} 

function getCookieVal (offset) {
   var endstr = document.cookie.indexOf (";", offset);
   if (endstr == -1)
      endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
}

function CheckOprosForm(id) {
	var check = GetCookie('opros');
	if (check == id)  {
		alert('Вы уже участвовали в этом опросе');
		return false;
	}
	var largeExpDate = new Date ();
	largeExpDate.setTime(largeExpDate.getTime() + 3600*60*1000);
	SetCookie('opros', id, largeExpDate, '');
	return true;
}

function GetCookie (name) {
        var arg = name + "=";
        var alen = arg.length;
        var clen = document.cookie.length;
        var i = 0;
        while (i < clen) {
                var j = i + alen;
                if (document.cookie.substring(i, j) == arg)
                        return getCookieVal (j);
                i = document.cookie.indexOf(" ", i) + 1;
                        if (i == 0)
                                break;
                }
   return null;
}
function SetCookie (name, value) {
        var argv = SetCookie.arguments;
        var argc = SetCookie.arguments.length;
        var expires = (argc > 2) ? argv[2] : null;
        var path = (argc > 3) ? argv[3] : null;
        var domain = (argc > 4) ? argv[4] : null;
        var secure = (argc > 5) ? argv[5] : false;
        document.cookie = name + "=" + value +
                ((expires == null) ? "" : ("; expires=" +
expires.toGMTString())) +
                ((path == null) ? "" : ("; path=" + path)) +
                ((domain == null) ? "" : ("; domain=" + domain)) +
                ((secure == true) ? "; secure" : "");
}

function go_to_page(page_url) {
	var date = new Date();
	var last_date = new Date();
	last_date.setTime(last_date.getTime() - 3600000);
	date.setTime(date.getTime() + 3600000);
	SetCookie('last_path', location.href, last_date, '/');
	SetCookie('last_path', location.href, date, '/');
	location.href = page_url;
}