I use this datepicker https://mymth.github.io/vanillajs-datepicker/#/
i use dateRangepicker here, you can look it demo here (choose on right side radio button "range")
https://raw.githack.com/mymth/vanillajs-datepicker/v1.1.4/demo/
its ok, but i done need 2 calendar bloks, 1 on start and 1 on end, i need one single calendar block that appears if i click first input or if i click second input, i need single for both