var imgs = new Array(
	'/cms/css/graphics/home-icon.png',
	'/cms/css/graphics/arrow-down2.png',
	'/cms/css/graphics/nav-drop-bg2.png'
);

preloadImages(imgs);

function preloadImages(images) {
	var imageObjs = new Array();
	for (var i in images) {
		imageObjs[i] = new Image();
		imageObjs[i].src = images[i];
	}
}

var pageScroller;

$(function() {
	$pageScroller = $('#page-scroller');
	$pageScroller.mousedown(function() {
		pageScroller = setInterval('scrollDown()', 50);
	});
	$pageScroller.mouseup(function() {
		stopScroll();
	});
	$pageScroller.click(function() {
		return false;
	});
	
	// Scroll up button
	$pageScrollerUp = $('#page-scroller-up');
	$pageScrollerUp.mousedown(function() {
		pageScroller = setInterval('scrollUp()', 50);
	});
	$pageScrollerUp.mouseup(function() {
		stopScroll();
	});
	$pageScrollerUp.click(function() {
		return false;
	});
});

function scrollUp()
{
	window.scrollBy(0, -30);
}

function scrollDown()
{
	window.scrollBy(0, 30);
}

function stopScroll()
{
	if (pageScroller != null) {
		clearTimeout(pageScroller);
	}
}