function hilite(imgName) {
	if(picsAreLoaded) {
		if(document.images) {
			document.images[imgName].src = eval(imgName + "_hi.src");
		}
	}
}

function lolite(imgName) {
  if(picsAreLoaded) {
		if(document.images) {
			document.images[imgName].src = eval(imgName + ".src");
		}
	}
}