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) {
		mojm_over = newImage("gfx/mojm-over.jpg");
		aktu_over = newImage("gfx/aktu-over.jpg");
		gale_over = newImage("gfx/gale-over.jpg");
		kont_over = newImage("gfx/kont-over.jpg");
		zapi_over = newImage("gfx/zapi-over.jpg");
		misj_over = newImage("gfx/misj-over.jpg");
		prog_over = newImage("gfx/prog-over.jpg");
		wyzy_over = newImage("gfx/wyzy-over.jpg");
		plac_over = newImage("gfx/plac-over.jpg");
		zaje_over = newImage("gfx/zaje-over.jpg");
		sobo_over = newImage("gfx/sobo-over.jpg");
		cenn_over = newImage("gfx/cenn-over.jpg");
		preloadFlag = true;
	}
}