function MM_openBrWindow(theURL,winName,features) { //v2.0
	  window.open(theURL,winName,features);
	}

	if (mtDropDown.isSupported()) {
		var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
		var menu1 = ms.addMenu(document.getElementById("menu1"));
		var menu2 = ms.addMenu(document.getElementById("menu2"),"mtDropdownMenu2");
		var menu3 = ms.addMenu(document.getElementById("menu3"),"mtDropdownMenu3");
		var menu4 = ms.addMenu(document.getElementById("menu4"),"mtDropdownMenu4");
		var menu5 = ms.addMenu(document.getElementById("menu5"),"mtDropdownMenu5");
		var menu6 = ms.addMenu(document.getElementById("menu6"),"mtDropdownMenu6");
		var menu7 = ms.addMenu(document.getElementById("menu7"),"mtDropdownMenu7");
		var menu8 = ms.addMenu(document.getElementById("menu8"),"mtDropdownMenu8");
		      menu1.addItem("最新消息", "news.html"); 
						
				menu2.addItem("大會時程", "programs.htm"); 		   
				
				menu3.addItem("年會議程", "agenda.html"); 		   
								
				menu4.addItem(". 演講及成果發表會", "activities_speech.html"); 		   
				menu4.addItem(". 天文教育研討會", "activities_edu.html"); 		
				menu4.addItem(". 天文大型計畫展", "activities_project.html");   
				menu4.addItem(". 天文攝影展", "activities_photo.html"); 		
				menu4.addItem(". 天文儀器圖書展", "activities_instruments.html"); 
		    	menu4.addItem(". 觀星活動", "activities_star.html"); 
				menu4.addItem(". 活動花絮", "activities_pictures.html"); 
				
				menu5.addItem(". 線上註冊", "register.html"); 
				menu5.addItem(". 報名成功清單", "viewREG.php");
								
				menu6.addItem(". 論文摘要上傳", "abstract.html");
				menu6.addItem(". 口頭報告/壁報論文作者注意事項", "abstract_instruction.html");
				menu6.addItem(". 口頭報告", "abstract_oral.html"); 
				menu6.addItem(". 壁報論文", "abstract_poster.html");
				
				menu7.addItem(". 會場資訊", "traliv_place.html"); 	
				menu7.addItem(". 交通", "traliv_traffic.html");
				menu7.addItem(". 年會專車", "traliv_shuttle.html");
				menu7.addItem(". 住宿", "traliv_living.html");
				menu7.addItem(". 旅遊資訊", "traliv_travel.html");
				
				menu8.addItem("回首頁", "index.html");
		mtDropDown.renderAll();
	}