var loadingImage = "/~cuervo/images/loading.gif";

function swapImage (el, fin)
{
	alert("Setting " + el + " to " + fin.src);
	document.images[el].src = fin.src;
}

function imgLoad (el, url)
{
	document.images[el].src = loadingImage;

	var finishedImage = new Image();
	finishedImage.src = url;
	finishedImage.onload = swapImage(el, finishedImage);

}