imageDir = "images/sock_images/links/";

function rollover(imgID)
{
	if (document[imgID] != null)
		document[imgID].src = imageDir + imgID + "Hover" + ".png";
	else
	{
		elt = document.getElementById(imgID);
		elt.src = imageDir + imgID + "Hover" + ".png";
	}
}

function rollout(imgID)
{
	if (document[imgID] != null)
		document[imgID].src = imageDir + imgID + ".png";
	else
	{
		elt = document.getElementById(imgID);
		elt.src = imageDir + imgID + ".png";
	}
}