/****************************************************************************
Система «Бизнес-сайт» 
(С) Андрей Головко | www.golovko.net
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Главное меню

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var mainmenu_icon_folder = new Image(); 
mainmenu_icon_folder.src = "./img/mainmenu_folder.gif";

var mainmenu_icon_folder_open = new Image(); 
mainmenu_icon_folder_open.src = "./img/mainmenu_folder_open.gif";

function Menu(ID)
{
	var page = $("parent"+ID);
	var icon = $("icon"+ID);
	if(!page || !icon) return;
	page.style.display = page.style.display == "block" ? "none" : "block";
	icon.alt = page.style.display == "block" ? "-" : "+";
	icon.title = page.style.display == "block" ? mainmenu_icon_close_title : mainmenu_icon_open_title;
	icon.src = page.style.display == "block" ? mainmenu_icon_folder_open.src : mainmenu_icon_folder.src;
	return;
}