if (document.images)
{
	arrow = new Array();
	arrow[0] = new Image(11, 10); arrow[0].src = "../graph/arrowfix.gif";
	arrow[1] = new Image(11, 10); arrow[1].src = "../graph/arrow.gif";
}

function changeImg(imgName, imgArray, number)
{
	if (document.images)
	{
		document.images[imgName].src = eval(imgArray + "[" + (number-1) + "].src");
	}
}