window.onload = function() {
	var el_scores = document.getElementById("scores");
	var offset = el_scores.offsetTop;
	var is_fixed = false;
	window.onscroll = function() {
		if (window.pageYOffset > offset) {
			if (!is_fixed) {
				el_scores.className = "fixed";
				is_fixed = true;
			}
		}
		else if (is_fixed) {
			el_scores.className = "";
			is_fixed = false;
		}
	}
}