if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("- 公司介绍","gsjianjie.htm"); // send no URL if nothing should happen onclick
		menu1.addItem("- 组织结构","zzjg.htm"); // send no URL if nothing should happen onclick
		menu1.addItem("- 标志释义","bzsy.htm");
		menu1.addItem("- 运营理念","yyln.htm");
			
	
//第二菜单
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- 业内资讯", "xinxisudi.htm"); // send no URL if nothing should happen onclick
	
		
		
		// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("- 固定电话资费标准", "zifeibiaozhun.htm");
		menu4.addItem("- 公用电话资费标准", "gydhzhbz.htm");
		menu4.addItem("- 互联网资费标准", "hlwzifei.htm");
			
	
		mtDropDown.renderAll();
	}