//ロールオーバー
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images ) {
		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) {
		sub01cur = newImage("../images/g_menu_01_over.gif");
		sub02cur = newImage("../images/g_menu_01_over.gif");
		sub03cur = newImage("../images/g_menu_01_over.gif");
		sub04cur = newImage("../images/g_menu_01_over.gif");
		sub05cur = newImage("../images/g_menu_01_over.gif");
		sub06cur = newImage("../images/sub_menu_06cur.gif");
		preloadFlag = true;
	}
}