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) {
		aktuellt_01_over = newImage("images/aktuellt_01-over.gif");
		hallbar_utveckling_01_over = newImage("images/hallbar_utveckling_01-over.gif");
		lastips_01_over = newImage("images/lastips_01-over.gif");
		tillbakablickar_01_over = newImage("images/tillbakablickar_01-over.gif");
		cv_01_over = newImage("images/cv_01-over.gif");
		kontakt_01_over = newImage("images/kontakt_01-over.gif");
		preloadFlag = true;
	}
}