function setup_mouseovers()
{
	// activate the mouseover images for the toolbar	
	var mouseovers = getElementsByJSName("over", document);
	for (var i in mouseovers) {
		mouseovers[i].onmouseover = function() { this.src = this.src.replace(".png", "-over.png"); };
		mouseovers[i].onmouseout = function() { this.src = this.src.replace("-over.png", ".png"); };
	}
}