function systemBottomBar() {
	$('#system-bar-close').on('click', function(event) {

		$('#system-bottom-bar').addClass('systembar-closed');

		setTimeout(function () {
			$('.systembar-min').addClass('min-open');
		}, 600);

	});

	$('#systembar-open').on('click', function(event) {
		event.preventDefault();

		$('.systembar-min').removeClass('min-open');

		setTimeout(function () {
			$('#system-bottom-bar').removeClass('systembar-closed');
		}, 600);
	});
}

function updatePosition() {
	var copyright = $('div.footer').length;

	if(copyright > 0) {
		checkPosition();
		window.onscroll = function() {
			checkPosition();
		}
	}
}

// Posiciona a Bottom Bar corretamente se a
// barra de copyright estiver ativa.
function checkPosition() {
	var margin = ((window.innerHeight + window.scrollY) - document.body.offsetHeight);
	if(margin < 50) {
		$('#system-bottom-bar').removeClass('systembar-with-copyright');
		$('.systembar-min').removeClass('systembar-with-copyright');
	}
	else if(margin >= 0) {
		$('#system-bottom-bar').addClass('systembar-with-copyright');
		$('.systembar-min').addClass('systembar-with-copyright');
	}
}

$(function(){
	systemBottomBar();
	updatePosition();
});