var down;
var up;
function scrollDown()
{
	document.getElementById('imgarrow_down').src = 'images/s-dw.png';
	document.getElementById('gallery').scrollTop = document.getElementById('gallery').scrollTop + 1;
	down=window.setTimeout("scrollDown()",10);
		
}
function scrollUp()
{
	document.getElementById('imgarrow_up').src = 'images/s-up.png';
	document.getElementById('gallery').scrollTop = document.getElementById('gallery').scrollTop - 1;
	up=window.setTimeout("scrollUp()",10);
}
function ClearAll()
{
	document.getElementById('imgarrow_down').src = 'images/s-dw.png';
	document.getElementById('imgarrow_up').src = 'images/s-up.png';
	clearTimeout(up);
	clearTimeout(down);
}


function scrollDownSv()
{
	document.getElementById('imgarrow_down').src = 'images/s-dw.png';
	document.getElementById('galleryscavolini').scrollTop = document.getElementById('galleryscavolini').scrollTop + 1;
	down=window.setTimeout("scrollDownSv()",10);
		
}
function scrollUpSv()
{
	document.getElementById('imgarrow_up').src = 'images/s-up.png';
	document.getElementById('galleryscavolini').scrollTop = document.getElementById('galleryscavolini').scrollTop - 1;
	up=window.setTimeout("scrollUpSv()",10);
}