function restore_image()
{
	var i, x, a = document.swapped;
	
	for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++)
		x.src = x.oSrc;
}

function preload_images()
{
	var d = document;
	
	if (d.images) {

		if (!d.cached)
			d.cached = new Array();
				
		var i, j = d.cached.length, a = preload_images.arguments;
		
		for (i = 0; i < a.length; i++)
			if (a[i].indexOf("#") != 0) {

				d.cached[j] = new Image;
				d.cached[j++].src = a[i];
			}
	}
}

function find_object(n, d)
{
	var p, i, x;

	if (!d)
		d = document;

	if ((p = n.indexOf("?")) > 0 && parent.frames.length) {

		d = parent.frames[n.substring(p+1)].document;
		n = n.substring(0,p);
	}

	if (!(x=d[n]) && d.all)
		x = d.all[n];
	
	for (i = 0; !x && i < d.forms.length; i++)
		x = d.forms[i][n];

	for (i = 0; !x && d.layers && i < d.layers.length; i++)
		x = find_object(n,d.layers[i].document);

	if (!x && d.getElementById)
		x = d.getElementById(n);

	return x;
}
						
function swap_image()
{
	var i, j = 0, x, a = swap_image.arguments;
	
	document.swapped = new Array;
	
	for (i = 0; i < (a.length - 2); i += 3)
		if ((x = find_object(a[i])) != null) {
			document.swapped[j++] = x;
			
			if (!x.oSrc)
				x.oSrc = x.src;
			
			x.src = a[i+2];
		}
}