DUBAI, Dec 5 (Reuters) - Iranian shops shut their doors in several cities on Monday, following calls for a three-day nationwide strike from protesters seeking the fall of clerical rulers, while the head of the judiciary blamed what he called "rioters" for threatening shopkeepers."Decisions are being made to confront those violations of hijab by a small group of women... officials cannot remain indifferent towards these violations," Khanmohammadi saidLast week, Vice President for Women's Affairs Ensieh Khazali said that the hijab was part of the Islamic Republic's general law and that it guaranteed women's social movement and security.In the shop protests, 1500tasvir, a Twitter account with 380,000 followers focused on the protests, shared videos on Monday of shut stores in commercial areas such as Tehran's Bazaar, and other large cities such as Karaj, Isfahan, Mashhad, Tabriz, and Shiraz.Similar footage by 1500tasvir and other activist accounts was shared of closed shops in smaller cities like Bojnourd, Kerman, Sabzevar, Ilam, Ardabil and Lahijan.Hundreds of people have been killed in the unrest since the death of Amini, a 22-year-old woman who was detained by the morality police for flouting hijab rules."