var scrollbar;

function scrollbarPressed (o, c, e) {
	o.className += "-Pressed";
};

function scrollbarReleased (o, c, e) {
	o.className = o.className.replace("-Pressed", "");
};

window.onload = function () {
	var content = document.getElementById("Text-Content");
	var scrollb = document.getElementById("Text-Scrollbar");

	scrollbar = new Scrolling.Scrollbar (
		scrollb,
		new Scrolling.Scroller (content, 400, 180),
		new Scrolling.ScrollTween()
	);
	
	scrollbar.onMouseDown = scrollbarPressed;
	scrollbar.onMouseUp   = scrollbarReleased;
};