National characters - save and resolve from cookies ASP.NET MVC + JS

I want save national characters to cookies in asp.net mvc, and then show them in javascript, but when I save this sentence: "Příliš žluťouličký kůň úpěl úděsné tóny." I got back this mass "Příliš ĹľluĹĄouliÄŤkĂ˝ kĹŻĹ ĂşpÄ›l ĂşdÄ›snĂ© tĂłny.". I'm using this construction for save data:I want save national characters to cookies in a