function setCookie (name, value, expires, path, domain, secure) {
      document.cookie = name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}

//общая функция проверки куки
function getCookie(name) {
	var cookie = " " + document.cookie;
	var search = " " + name + "=";
	var setStr = null;
	var offset = 0;
	var end = 0;
	if (cookie.length > 0) {
		offset = cookie.indexOf(search);
		if (offset != -1) {
			offset += search.length;
			end = cookie.indexOf(";", offset)
			if (end == -1) {
				end = cookie.length;
			}
			setStr = unescape(cookie.substring(offset, end));
		}
	}
	return(setStr);
}
//общая функция проверки куки


//проверка куки при загрузке страницы
function check_cookie()
{
menu1.style.display = 'none'
	menu2.style.display = 'none'
	menu3.style.display = 'none'
	dopMenu.style.display = 'none'
menu_show1.style.display = 'block'
	menu_show2.style.display = 'block'
	menu_show3.style.display = 'block'
t = getCookie("show_menu")
if	(t == null) { menu1.style.display = 'block'; dopMenu.style.display = 'block'; menu_show1.style.display = 'none'; }
	else if (t == 1) { menu1.style.display = 'block'; menu_show1.style.display = 'none'; }
	else if (t == 2) { menu2.style.display = 'block'; menu_show2.style.display = 'none'; }
	else if (t == 3) { menu3.style.display = 'block'; menu_show3.style.display = 'none'; }
}
//проверка куки при загрузке страницы




//установка куки при щелчке
function set_cookie(a)
{
//setCookie("show_menu", a, "", "/");
document.cookie = "show_menu="+a+";path=/";

menu1.style.display = 'none'
	menu2.style.display = 'none'
	menu3.style.display = 'none'
	dopMenu.style.display = 'none'
menu_show1.style.display = 'block'
	menu_show2.style.display = 'block'
	menu_show3.style.display = 'block'
if (a == 1) { menu1.style.display = 'block'; dopMenu.style.display = 'block'; menu_show1.style.display = 'none';  } 
	else if (a == 2) { menu2.style.display = 'block'; menu_show2.style.display = 'none'; } 
	else if (a == 3) { menu3.style.display = 'block'; menu_show3.style.display = 'none'; }
}