// Used for mouse-overs.  Ensures images have been loaded.
var imagesLoaded = 0;

// Pre-load all of the images for the side bar before we allow mouse-over effects.
function PreLoadImages() {
	for (i=1; i<=8; i++) {
		tmpImgOff = new Image(0, 0);
		tmpImgOff.src = '/images/navbar-' + i + '-off.gif';
		tmpImgOn = new Image(0, 0);
		tmpImgOn.src = '/images/navbar-' + i + '-on.gif';
	}

	imagesLoaded = 1;
} //PreLoadImages


// Swap an images during a mouse-over/out effect.
function SwapImage(index, mode) {
	if (imagesLoaded) {
		document.images['Navbar' + index].src = '/images/navbar-' + index + '-' + mode + '.gif';
	}
} //SwapImage