function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		b_home_over = newImage("images/b-home-over.jpg");
		b_wind_over = newImage("images/b-wind-over.jpg");
		b_services_over = newImage("images/b-services-over.jpg");
		b_projects_over = newImage("images/b-projects-over.jpg");
		b_links_over = newImage("images/b-links-over.jpg");
		b_partnerships_over = newImage("images/b-partnerships-over.jpg");
		b_landowners_over = newImage("images/b-landowners-over.jpg");
		b_contact_over = newImage("images/b-contact-over.jpg");
		preloadFlag = true;
	}
}