$(document).ready(function() {
	$(window).scroll(function() {
		if ($(window).scrollTop() > $("#boxSpecialFeatures").offset().top && $("#specialFeatures").css("position") != "fixed")
			$("#specialFeatures").css({ 
				position: "fixed",
        top: 0
      });

		if ($(window).scrollTop() <= $("#boxSpecialFeatures").offset().top && $("#specialFeatures").css("position") != "relative")
			$("#specialFeatures").css({ 
				position: "relative",
        top: $("#boxSpecialFeatures").offset
      });
	});
});