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) {
		about_company_over = newImage("images/about-company-over.gif");
		our_services_over = newImage("images/our-services-over.gif");
		news___events_over = newImage("images/news-%26-events-over.gif");
		partners___affiliates_over = newImage("images/partners-%26-affiliates-over.gif");
		support___contacts_over = newImage("images/support-%26-contacts-over.gif");
		preloadFlag = true;
	}
}

function potvrzeni(formular) {
	anone = window.confirm("Prosím, potvrïte volbu!");
	return anone;
	}

function textCounter(field, countfield, maxlimit) {
  if (field.value.length > maxlimit) // if too long...trim it!
    field.value = field.value.substring(0, maxlimit);
  // otherwise, update 'characters left' counter
  else
    countfield.value = maxlimit - field.value.length;
}