if (document.images) {
	dlarrow = new Image();
	dlarrow.src="/images/qu-pbg-dl-arrow.gif";
	dlarrowov = new Image();
	dlarrowov.src="/images/qu-pbg-dl-arrow_ov.gif";
	dlarrowpr = new Image();
	dlarrowpr.src="/images/qu-pbg-dl-arrow_pr.gif";
	}

function swapDLArrow( id, mode ) {
	if (document.images) {
		document.getElementById('dl-arrow-' + id).src = eval( "dlarrow" + mode + ".src" )
		}
	}