function swap_a (name) {
	var img = document.images[name];

	if (typeof(document.images[name].active)=='object') {
		//document.images[name].inactive =  document.images[name];
		document.images[name].src = document.images[name].active.src;
	}
	
	window.status='';
	return true;
}

function swap_back (name) {
	if (typeof(document.images[name].inactive)=='object') {
		document.images[name].src = document.images[name].inactive.src;
	}
}

function preloadActiveImage (name,src) {

	document.images[name].inactive = new Object;
	document.images[name].inactive.src = document.images[name].src;
	document.images[name].active = new Image;
	document.images[name].active.src = src;
}