var actTop = 0;
var sHeight = 0;
var cHeight = 380;
var diff = 250;
var bScrollUp = false;
var bScrollDown = false;

var scrollUp = function() {
	if (bScrollUp) {
		if (-1*actTop + cHeight < sHeight + diff/5) {
			actTop -= diff;
			if (actTop + sHeight < diff) {
				actTop = (sHeight - diff) * -1;
			}
			$('#contentScroller').animate({left: 0, top: actTop}, 'slow');
		}
	}
	setTimeout('scrollUp()', 1000);
};

var scrollDown = function() {
	if (bScrollDown) {
		if (actTop < 0) {
			actTop += diff;
			if (actTop > 0) {
				actTop = 0;
			}
			$('#contentScroller').animate({left: 0, top: actTop}, 'slow');
		}
	}
	setTimeout('scrollDown()', 1000);
};

$(function() {
	sHeight = $('#contentScroller').height();
	
	$('#scroll-up').mouseover(function(e) { bScrollUp = true; });
	$('#scroll-up').mouseout(function(e) { bScrollUp = false; });
	
	$('#scroll-down').mouseover(function(e) { bScrollDown = true; });
	$('#scroll-down').mouseout(function(e) { bScrollDown = false; });
	
	setTimeout('scrollUp()', 1000);
	setTimeout('scrollDown()', 1000);
});