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) {
		but_print_over = newImage("/images/but_print_version-over.gif");
		but_auditit_over = newImage("/images/but_auditit-over.jpg");
		but_bcpdrp_over = newImage("/images/but_bcpdrp-over.jpg");
		but_certification_over = newImage("/images/but_certification-over.jpg");
		but_chooseitsolution_over = newImage("/images/but_chooseitsolution-over.jpg");
		but_ciocsocto_over = newImage("/images/but_ciocsocto-over.jpg");
		but_cobit_over = newImage("/images/but_cobit-over.jpg");
		but_distribution_over = newImage("/images/but_distribution-over.jpg");
		but_inforisk_over = newImage("/images/but_inforisk-over.jpg");
		but_cod_over = newImage("/images/but_cod-over.jpg");
		but_learning_over = newImage("/images/but_learning-over.jpg");
		but_manageit_over = newImage("/images/but_manageit-over.jpg");
		but_manageproject_over = newImage("/images/but_manageproject-over.jpg");
		but_security_over = newImage("/images/but_security-over.jpg");
		preloadFlag = true;
	}
}