var top_menu = new Object(); /*предзагрузка изображений*/
		
		top_menu['home'] = new Image(110, 41);
		top_menu['home'].src = "../style/top_menu_home.jpg";
		
		top_menu['home_hover'] = new Image(110, 41);
		top_menu['home_hover'].src = "../style/top_menu_home_hover.jpg";
		
		top_menu['history'] = new Image(248, 41);
		top_menu['history'].src = "../style/top_menu_history.jpg";
		
		top_menu['history_hover'] = new Image(248, 41);
		top_menu['history_hover'].src = "../style/top_menu_history_hover.jpg";
		
		top_menu['now'] = new Image(250, 41);
		top_menu['now'].src = "../style/top_menu_now.jpg";
		
		top_menu['now_hover'] = new Image(250, 41);
		top_menu['now_hover'].src = "../style/top_menu_now_hover.jpg";
		
		top_menu['future'] = new Image(249, 41);
		top_menu['future'].src = "../style/top_menu_future.jpg";
		
		top_menu['future_hover'] = new Image(249, 41);
		top_menu['future_hover'].src = "../style/top_menu_future_hover.jpg";
		
		top_menu['mail'] = new Image(112, 41);
		top_menu['mail'].src = "../style/top_menu_mail.jpg";
		
		top_menu['mail_hover'] = new Image(112, 41);
		top_menu['mail_hover'].src = "../style/top_menu_mail_hover.jpg";