if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("- 公司简介","about.asp"); // send no URL if nothing should happen onclick
		menu1.addItem("- 公司大事记","History.asp");
		menu1.addItem("- 联系我们","Contact.asp");	

		// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("- 企业形象", "Img.asp");
		menu4.addItem("- 企业荣誉", "Honor.asp");
		
		// menu : 7
		var menu7 = ms.addMenu(document.getElementById("menu7"));
		menu7.addItem("- 会员中心", "Server.asp");
		menu7.addItem("- 留言中心", "NetBook.asp");
	
		mtDropDown.renderAll();
	}