function arrowhintOFF()
	{
		document.getElementById('arrowhint').style.display='none';
	}

function arrowhintON(vx,vy)
	{
		document.getElementById('arrowhint').style.top=vy+'px';
		document.getElementById('arrowhint').style.marginLeft=vx+'px';
		document.getElementById('arrowhint').style.display='block';
	}