function changeContent(url) 
{
	if (document.all)
		document.all['content'].src = url;
	else if (document.getElementById && !document.all)
		document.getElementById('content').src = url;
}

function changeImage(elem, dir) 
{
	url = "images/" + elem;
	if (dir == "over")
		document.images[elem].src = url + "_r.gif";
	else
		document.images[elem].src = url + "_n.gif";
}

function preloadImages() 
{
	var img = new Image();
	img.src = "images/correction_r.gif";
	var img2 = new Image();
	img2.src = "images/decision_r.gif";
	var img3 = new Image();
	img3.src = "images/tech_r.gif";
	var img4 = new Image();
	img4.src = "images/choose_r.gif";
	var img5 = new Image();
	img5.src = "images/doctors_r.gif";
	var img6 = new Image();
	img6.src = "images/directions_r.gif";
}

function changeRightSideImg(img) 
{
	document.links.document.images['rightside'].src = "images/" + img + "_right.jpg";
}