if (mtDropDown.isSupported()) {

		var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);

		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem(" 基本档案", "javascript:loadinfo()"); 
		menu2.addItem(" 课时记录", "javascript:loadcourse()");// send no URL if nothing should happen onclic


		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("个性化分析报告", "javascript:loadreport()");// send no URL if nothing should happen onclic
		menu3.addItem("我的个性课程", "javascript:loadpersoncourse()");
		menu3.addItem("学大考试", "javascript:loadexam()");
		menu3.addItem("学习答疑", "javascript:loadask()");
		
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem(" 教师投诉", "javascript:loadcomplain();"); 
		//menu4.addItem(" 教学反馈", "javascript:loadfeed();"); 
		menu4.addItem(" 退单查询", "javascript:loadquit();");// send no URL if nothing should happen onclic
		
		var menu5 = ms.addMenu(document.getElementById("menu5"));
		menu5.addItem(" 常见问题", "javascript:help();");  // send no URL if nothing should happen onclic
			
		mtDropDown.renderAll();
	}