function rollover(fname) {
	var BaseHref = 'images/';
	return 'rollover:' + BaseHref + fname + '_off.jpg:' + BaseHref + fname + '_on.jpg';
}

function getWindowWidth() {
	var w = 0;
	if (parseInt(navigator.appVersion) > 3) {
 		if (navigator.appName == "Netscape") {
  			w = window.innerWidth;
		} else if (navigator.appName.indexOf("Microsoft") != -1) {
  			w = document.body.offsetWidth;
		}
	}
	var c =-428;
	if (w < c) return 0;
	return Math.round((w - c) / 2);
}


function switchLang() {
	var url = new String(location.href);
	var url2 = '';
	var pos = -1;
	if ((pos = url.indexOf('/eng/')) >= 0) {
		if (pos >= 0) url2 = url.substring(0, pos) + '/chi/' + url.substring(pos + 5, url.length);
	} else if ((pos = url.indexOf('/chi/')) >= 0) {
		if (pos >= 0) url2 = url.substring(0, pos) + '/eng/' + url.substring(pos + 5, url.length);
	}
	if (url2 != '') window.location.replace(url2);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function menu_init() {
	if (menus.length) return;
	var effect = 24;
	effect = 0;
	var ri = '';
	menus[0] = new menu(19, 'vertical', getWindowWidth(), 95, -150, 5, 'black', 'black', 'arial,sans-serif', 9, '',
		'', 'black', 'black', 0, 'black', 0, ri, false, false, true, (effect > 0), effect, false, 0, 0, 'black');
	menus[0].addItem('','',46,'',rollover('btn_01'), 1);
	menus[0].addItem('green_member.html','',40,'',rollover('btn_02'), 0);
	menus[0].addItem('recycle.html','',45,'',rollover('btn_03'), 0);
	menus[0].addItem('','',38,'',rollover('btn_04'), 2);
	menus[0].addItem('','',44,'',rollover('btn_05'), 3);


	menus[1] = new menu(130, 'vertical', 0, 0, 0, 0, 'E9E9C5', '#9E9E6D', 'arial,sans-serif', 10, '',
		'', 'black', 'white', 0, 'black', 2, ri, false, false, false, false, 0, true, 2, 2, '2F5D13');
	menus[1].addItem('intro.html','',22,'','簡介', 0);
	menus[1].addItem('photo.html','',22,'','活動回顧/照片集', 0);

	menus[2] = new menu(130, 'vertical', 0, 0, 0, 0,  'E9E9C5', '#9E9E6D', 'arial,sans-serif', 9, '',
		'', 'black', 'white', 0, 'black', 2, ri, false, false, false, false, 0, true, 2, 2, '2F5D13');
	menus[2].addItem('know_more_faq.html','',22,'','廢物/回收問題', 0);
	menus[2].addItem('electronic.html','',22,'','電子廢物回收', 0);
	menus[2].addItem('know_more_tips.html','',22,'','綠色生活小貼士', 0);
	menus[2].addItem('know_more_news.html','',22,'','環保新知', 0);
	menus[2].addItem('know_more_natural.html','',22,'','共賞大自然', 0);

	menus[3] = new menu(130, 'vertical', 0, 0, 0, 0,  'E9E9C5', '#9E9E6D', 'arial,sans-serif', 9, '',
		'', 'black', 'white', 0, 'black', 2, ri, false, false, false, false, 0, true, 2, 2, '2F5D13');
	menus[3].addItem('game.html','',22,'','有獎問答遊戲', 0);
	menus[3].addItem('game02.html','',22,'','綠遊天地', 0);
} //OUTER CLOSING BRACKET. EVERYTHING ADDED MUST BE ABOVE THIS LINE.