Uncaught SyntaxError: неожиданный токен 'else'?

Question

[Светлана Белоусова]

$(document).on("scroll", function () {
		it($(window).scrollTop() === 0)
		$("header").removeClass("fixed");
		else
		$("header").attr("class","fixed");
	});

Comments

[v3shin]

> it($(window).scrollTop() ...
it?