function act(imgName) {
	if (document.images)
		document[imgName].src = eval(imgName + 'a.src');
}

function inact(imgName) {
	if (document.images)
		document[imgName].src = eval(imgName + 'n.src');

}

if (document.images) {
    var whown = new Image();
	whown.src = "images/button_whoweare.jpg";
	var whowa = new Image();
	whowa.src = "images/button_whoweare_on.jpg";
	var howin = new Image();
	howin.src = "images/button_howitworks.jpg";
	var howia = new Image();
	howia.src = "images/button_howitworks_on.jpg";
	var whatn = new Image();
	whatn.src = "images/button_whatwemove.jpg";
	var whata = new Image();
	whata.src = "images/button_whatwemove_on.jpg";
	var requn = new Image();
	requn.src = "images/button_requestasearch.jpg";
	var requa = new Image();
	requa.src = "images/button_requestasearch_on.jpg";
	var schen = new Image();
	schen.src = "images/button_schedule.jpg";
	var schea = new Image();
	schea.src = "images/button_schedule_on.jpg";
	var faqsn = new Image();
	faqsn.src = "images/button_faq.jpg";
	var faqsa = new Image();
	faqsa.src = "images/button_faq_on.jpg";
	var contn = new Image();
	contn.src = "images/button_contactus.jpg";
	var conta = new Image();
	conta.src = "images/button_contactus_on.jpg";
	}