var totalmenu = 29;

imageArray = new Array(totalmenu);

function preloadImages() {
	var i;
	
	for (i = 1 ; i <= totalmenu ; i++) {
		imageArray [i - 1] = new Image();
		imageArray [i - 1].src = "images/menu/rm" + i + "o.gif";
 	 }
}

function showNormal(m) {
	if (m == 0) return;
	document.images["arm" + m ].src = "images/menu/rm" + m + "n.gif";
}	

	function showOver(m) {
	if (m == 0) return;
	document.images["arm" + m ].src = "images/menu/rm" + m + "o.gif";
}	

preloadImages();