function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}
function changeImages() {
	changeImagesArray(changeImages.arguments);
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}
function changeImages() {
	changeImagesArray(changeImages.arguments);
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_navi_02over = newImage('$staticRoot/img/top/navi_02over.gif');
		pre_navi_04over = newImage('$staticRoot/img/top/navi_04over.gif');
		pre_navi_05over = newImage('$staticRoot/img/top/navi_05over.gif');
		pre_navi_06over = newImage('$staticRoot/img/top/navi_06over.gif');
		pre_navi_07over = newImage('$staticRoot/img/top/navi_07over.gif');
		pre_navi_08over = newImage('$staticRoot/img/top/navi_08over.gif');
		pre_login_over = newImage('$staticRoot/img/top/login_over.gif');
		pre_mypage_over = newImage('$staticRoot/img/top/mypage_over.gif');
		pre_navi_01_over = newImage('$staticRoot/img/top/navi_01_over.gif');
		pre_bn_01over = newImage('$staticRoot/img/top/bn_01over.gif');
		pre_bn_02over = newImage('$staticRoot/img/top/bn_02over.gif');
		pre_bn_03over = newImage('$staticRoot/img/top/bn_03over.gif');
		pre_bn_04over = newImage('$staticRoot/img/top/bn_04over.gif');
		pre_bn_05over = newImage('$staticRoot/img/top/bn_05over.gif');
		pre_bn_06over = newImage('$staticRoot/img/top/bn_06over.gif');
		pre_bn_07over = newImage('$staticRoot/img/top/bn_07over.gif');
		pre_sub_bn01over = newImage('$staticRoot/img/top/sub_bn01over.gif');
		pre_sub_bn02over = newImage('$staticRoot/img/top/sub_bn02over.gif');
		pre_sub_bn03over = newImage('$staticRoot/img/top/sub_bn03over.gif');
		pre_sub_bn04over = newImage('$staticRoot/img/top/sub_bn04over.gif');
		pre_sub_bn05over = newImage('$staticRoot/img/top/sub_bn05over.gif');
		pre_sub_bn06down = newImage('$staticRoot/img/top/sub_bn06down.gif');
		pre_sub_bn07over = newImage('$staticRoot/img/top/sub_bn07over.gif');
		preloadFlag = true;
	}
}