// JavaScript Document

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) {
		menu_zh_over = newImage("images/menu_zh-over.jpg");
		menu_en_over = newImage("images/menu_en-over.jpg");
		menu_07_over = newImage("images/menu_07-over.jpg");
		menu_08_over = newImage("images/menu_08-over.jpg");
		menu_intro_over = newImage("images/menu_intro-over.jpg");
		menu_news_over = newImage("images/menu_news-over.jpg");
		menu_schedule_over = newImage("images/menu_schedule-over.jpg");
		menu_charity_over = newImage("images/menu_charity-over.jpg");
		menu_selection_over = newImage("images/menu_selection-over.jpg");
		menu_flag_over = newImage("images/menu_flag-over.jpg");
		menu_final_over = newImage("images/menu_final-over.jpg");
		menu_contact_over = newImage("images/menu_contact-over.jpg");
		menu_hwc_hk_over = newImage("images/menu_hwc-hk-over.jpg");
		menu_press_over = newImage("images/menu_press-conf-over.jpg");
		menu_train_over = newImage("images/menu_training-over.jpg");
		worldcup08_banner_03_over = newImage("../images/worldcup08_banner_03-over.jpg");
		worldcup08_banner_06_over = newImage("../images/worldcup08_banner_06-over.jpg");
		worldcup08_banner_09_over = newImage("../images/worldcup08_banner_09-over.jpg");
		preloadFlag = true;
	}
}

function yuiChangeImage(name, imagelink) {
	document.getElementById(name).style.backgroundImage = "url("+imagelink+")";
}