diff --git a/README.md b/README.md
index 96e2c91..0c97759 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,8 @@ First line<br/> Second line
 
 Dialog button clicks should be processed in the `on_dialog_action(number)` callback, where 1 is the first button, 2 is the second, and -1 is the "closed" button if no buttons were specified. `ui:show_edit_dialog()` returns the text in the `on_dialog_action(text)` callback.
 
+If the first argument of the dialog contains two lines separated by `\n`, the second line becomes a subheading.
+
 # Context menu
 
 * `ui:prepare_context_menu(table)` - prepares the context menu, which will be automatically shown when the item is held on the screen for a long time.
diff --git a/README_ru.md b/README_ru.md
index dc52f07..e7c2a9f 100644
--- a/README_ru.md
+++ b/README_ru.md
@@ -55,6 +55,8 @@ First line<br/>Second line
 
 Нажатия на кнопки диалога должны обрабатываться в колбеке `on_dialog_action(number)`, где 1 - это первая кнопка, 2 - вторая, а -1 - нажатие кнопки "закрыть", если никакие кнопки не были указаны. `ui:show_edit_dialog()` возвращает текст в колбек `on_dialog_action(text)`.
 
+Если первый аргумент диалога содержит две строки, разделенных знаком `\n`, вторая строка станет подзаголовком.
+
 # Контекстное меню
 
 * `ui:prepare_context_menu(table)` - функция подготавливает контекстное меню, которое будет автоматически показано при долгом удержании элемента на экране.
diff --git a/main/shell-widget.lua b/main/shell-widget.lua
index d4cd858..e71c5c3 100644
--- a/main/shell-widget.lua
+++ b/main/shell-widget.lua
@@ -15,7 +15,7 @@ function redraw()
 end
 
 function on_click(idx)
-    ui:show_edit_dialog("Enter command")
+    ui:show_edit_dialog("Enter command\nAAAA")
 end
 
 function on_dialog_action(text)
diff --git a/ru/calendar-ru-widget.lua b/ru/calendar-ru-widget.lua
new file mode 100644
index 0000000..4d58802
--- /dev/null
+++ b/ru/calendar-ru-widget.lua
@@ -0,0 +1,170 @@
+-- name = "Календарь"
+-- description = "Производственный календарь"
+-- data_source = "https://isdayoff.ru/"
+-- type = "widget"
+-- author = "Andrey Gavrilov"
+-- version = "1.0"
+
+local color = require "md_colors"
+
+local days = {}
+local tab = {}
+
+local pr_text_color = ui:get_primary_text_color()
+local sec_text_color = ui:get_secondary_text_color()
+local year = os.date("*t").year
+local month = os.date("*t").month
+
+function on_alarm()
+	is_days_off(year,month)
+end
+
+function is_days_off(y,m)
+	http:get("https://isdayoff.ru/api/getdata?year="..y.."&month="..m.."&pre=1&delimeter=-&covid=1")
+end
+
+function on_network_result(result)
+	days = result:split("-")
+	tab = get_cal(year,month)
+	ui:show_table(tab,8, true)
+	ui:set_title(ui:get_default_title().." ("..string.format("%02d.%04d",month,year)..")")
+end
+
+function on_click(i)
+	if i == 1 then
+		local time = get_time(begin_month(year,month))-24*60*60
+		local y,m,d = get_day(time)
+		year = y
+		month = m
+	elseif i == 8 then
+		local time = get_time(end_month(year,month))+24*60*60
+		local y,m,d = get_day(time)
+		year = y
+		month = m
+	elseif i > 1 and i < 8 then
+		ui:show_edit_dialog("Введите месяц и год", "Формат - 12.2020. Пустое значение - текущий месяц", string.format("%02d.%04d", month, year))
+	elseif (i-1)%8 ~= 0 and tab[i] ~= " " then
+		ui:show_toast(os.date("*t", get_time(year,month,tab[i]:match(">(%d+)<"))).yday)
+		return
+	else
+		return
+	end
+	is_days_off(year,month)
+end
+
+function on_dialog_action(data)
+	if data == -1 then
+		return
+	elseif data == "" then
+		local date = os.date("*t")
+		if year == date.year and month == date.month then
+			return
+		end
+		year = date.year
+		month = date.month
+		is_days_off(year,month)
+		return
+	elseif not check_date(data) then
+		return
+	else
+		local m,y = data:match("(%d+)%.(%d+)")
+		if year == tonumber(y) and month == tonumber(m) then
+			return
+		end
+	end
+	local m,y = data:match("(%d+)%.(%d+)")
+	year = tonumber(y)
+	month = tonumber(m)
+	is_days_off(year,month)
+end
+
+function get_cal(y,m)
+	local from = get_time(begin_month(y,m))
+	local tab = {
+				"<b>&lt;</b> <font color=\""..sec_text_color.."\">#</font>",
+				"<font color=\""..sec_text_color.."\">Пн</font>",
+				"<font color=\""..sec_text_color.."\">Вт</font>",
+				"<font color=\""..sec_text_color.."\">Ср</font>",
+				"<font color=\""..sec_text_color.."\">Чт</font>",
+				"<font color=\""..sec_text_color.."\">Пт</font>",
+				"<font color=\""..sec_text_color.."\">Сб</font>",
+				"<font color=\""..sec_text_color.."\">Вс</font> <b>></b>"
+				}
+	table.insert(tab,"<font color=\""..sec_text_color.."\">"..weeknumber(get_day(from)).."</font>")
+	for i =1, weekday(get_day(from))-1,1 do
+		table.insert(tab," ")
+	end
+	local to = get_time(end_month(y,m))
+	local k=0
+	for time = from,to,24*60*60 do
+		k=k+1
+		local y,m,d = get_day(time)
+		table.insert(tab, format_day(d,k))
+		if weekday(get_day(time))==7 and time ~= to then
+			table.insert(tab, "<font color=\""..sec_text_color.."\">"..weeknumber(get_day(time+24*60*60)).."</font>")
+		end
+	end
+	for i = weekday(get_day(to))+1,7,1 do
+		table.insert(tab," ")
+	end
+	return tab
+end
+
+function weeknumber(y,m,d)
+	local yday = os.date("*t",os.time{day=d,month=m,year=y}).yday
+	local wday = weekday(y,m,1)
+	return math.floor((yday+10-wday)/7)
+end
+
+function weekday(y,m,d)
+	local wday = os.date("*t",os.time{day=d,month=m,year=y}).wday-1
+	if wday == 0 then wday = 7 end
+	return wday
+end
+
+function begin_month(y,m)
+	local time = os.time{day=1,month=m,year=y}
+	local date = os.date("*t",time)
+	return date.year,date.month,date.day
+end
+
+function end_month(y,m)
+	local time = os.time{day=1,month=m,year=y}+31*24*60*60
+	local date = os.date("*t",time)
+	local time = os.time{day=1,month=date.month,year=date.year}-24*60*60
+	local date = os.date("*t",time)
+	return date.year,date.month,date.day
+end
+
+function get_day(t)
+	local date = os.date("*t",t)
+	return date.year,date.month,date.day
+end
+
+function get_time(y,m,d)
+	return os.time{day=d,month=m,year=y}
+end
+
+function format_day(d,k)
+	local day = d
+	if days[k] == "2" then
+		day = "<font color=\""..color.orange_500.."\">"..day.."</font>"
+	elseif days[k] == "1" then
+		day = "<font color=\""..color.red_A700.."\">"..day.."</font>"
+	elseif days[k] == "4" then
+		day = "<font color=\""..sec_text_color.."\">"..day.."</font>"
+	else
+		day = "<font color=\""..pr_text_color.."\">"..day.."</font>"
+	end
+	if year == os.date("*t").year and month == os.date("*t").month and d == os.date("*t").day then
+		day = "<b>"..day.."</b>"
+	end
+	return day
+ end
+ 
+function check_date(date)
+	local m, Y = date:match("(%d+).(%d+)")
+	local time = os.time{day=1, month=m or 0, year=Y or 0}
+	local str = string.format("%02d.%04d", m or 0, Y or 0)
+	return str == os.date("%m.%Y", time)
+end
diff --git a/samples/dialog_sample.lua b/samples/dialog_sample.lua
index 944b724..5f51ce9 100644
--- a/samples/dialog_sample.lua
+++ b/samples/dialog_sample.lua
@@ -8,7 +8,7 @@ end
 
 function on_click(idx)
     if idx == 1 then
-        ui:show_dialog("Dialog title", "This is dialog")
+        ui:show_dialog("Dialog title\nSubtitle", "This is dialog")
     elseif idx == 2 then
         ui:show_dialog("Dialog title", "This is dialog", "Button 1", "Button 2")
     elseif idx == 3 then