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","gywm-1.asp"); // send no URL if nothing should happen onclick
		menu1.addItem("- 人员介绍","gywm-2.asp"); // send no URL if nothing should happen onclick
		menu1.addItem("- 荣誉资质","gywm-5.asp");
		menu1.addItem("- 地理位置","gywm-3.asp");
		menu1.addItem("- 联系我们","gywm-4.asp");	
	
//第二菜单
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- 专利业务", "yw-1.asp"); 
		menu2.addItem("- 商标业务", "yw-2.asp"); // send no URL if nothing should happen onclick
	    menu2.addItem("- 广告业务", "yw-3.asp"); 
		menu2.addItem("- 品牌推广业务", "yw-4.asp"); 
		// menu : 3
		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("- 专利", "News5.asp");
		menu3.addItem("- 商标", "News6.asp");
		menu3.addItem("- 版权", "News7.asp");
		menu3.addItem("- 其他", "News8.asp");


	
		mtDropDown.renderAll();
	}