function showfull(img)
{
	// this function works by taking an image's thumbnail,
	// finding the full version, and swapping.
	
	// find full version:
	img = img.replace("thumbs","fullpics");
	img = img.replace("sm","lg");
		
	// swapping
	document.fullgraphic.src = img;
}

function rollover(imgsrc, imgname, direction, current)
{

	// which one are we currently on?
	current = "nav_"+current;
	
	// only show this if we're not on the current one
	if (current != imgname)
	{

		// simple javascript rollover
		
		if (direction == "off")
		{
		imgsrc = imgsrc.replace("_highlight.gif",".gif");
		}else if (direction == "on"){
		imgsrc = imgsrc.replace(".gif","_highlight.gif");
		}
		
		// swapping
		document.getElementById(imgname).src = imgsrc;
	
	}
}