// JavaScript Document

document.observe ('dom:loaded', function () {
	if ($('gframe') != null && navigator.appName != "Microsoft Internet Explorer")
	{
		var gimagecount = $$('.gitem').length;
		var gcurrentimage = 1;
		$('gframe').addClassName ('overflowhidden');
		$('galwrapper').style.marginLeft = '23px';
		if (gimagecount > 2)
		{
			$('garrowdown').show();
			$('garrowup').show();
		}
		$('garrowdown').observe ('click', function (event) {
			event.stop ();
			if (++gcurrentimage < gimagecount)
				new Effect.Move('moveable', { x: 0, y: -170 });
			else
				gcurrentimage = gimagecount -1;
		});		
		$('garrowup').observe ('click', function (event) {
			event.stop ();
			--gcurrentimage;
			if (gcurrentimage > 0)
				new Effect.Move('moveable', { x: 0, y: 170 });
			else
				gcurrentimage = 1;
		});		
	}
});