if (mtDropDown.isSupported()) {

		var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 10, mtDropDown.reference.bottomLeft);
		
		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("   PUMASON中国   ", "view.php?class_id=3&id=24");
		menu1.addItem("   企业文化   ", "view.php?class_id=3&id=25");
		menu1.addItem("   国际交流   ", "view.php?class_id=3&id=26");
		menu1.addItem("   服务网络   ", "view.php?class_id=3&id=27");
		menu1.addItem("   资质证书   ", "view.php?class_id=3&id=28");
		
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("   制造装备   ", "view.php?class_id=4&id=29");
		menu2.addItem("   加工车间   ", "view.php?class_id=4&id=30");
		menu2.addItem("   成品仓库   ", "view.php?class_id=4&id=31");
		menu2.addItem("   设计室   ", "view.php?class_id=4&id=32");
		menu2.addItem("   实验室   ", "view.php?class_id=4&id=33");

		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("   电磁阀   ", "pro.php?class_id=1");
		menu3.addItem("   电动阀   ", "pro.php?class_id=2");
		menu3.addItem("   气动阀   ", "pro.php?class_id=4");
		menu3.addItem("   调节阀   ", "pro.php?class_id=5");
		menu3.addItem("   真空阀   ", "pro.php?class_id=3");
		menu3.addItem("   空调阀   ", "pro.php?class_id=7");
		menu3.addItem("   止回阀   ", "pro.php?class_id=8");
		menu3.addItem("   电子级阀   ", "pro.php?class_id=6");
		
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("   行业领域   ", "view.php?class_id=5&id=34");
		menu4.addItem("   典型用户   ", "view.php?class_id=5&id=35");
		menu4.addItem("   应用场景   ", "view.php?class_id=5&id=36");

		var menu5 = ms.addMenu(document.getElementById("menu5"));
		menu5.addItem("   电子式电动调节阀   ", "dl.php?class_id=1");
		menu5.addItem("   气动薄膜式调节阀   ", "dl.php?class_id=2");
		menu5.addItem("   球阀   ", "dl.php?class_id=3");
		menu5.addItem("   蝶阀   ", "dl.php?class_id=4");
		menu5.addItem("   止回阀   ", "dl.php?class_id=5");
		menu5.addItem("   电磁阀   ", "dl.php?class_id=6");
		menu5.addItem("   真空阀   ", "dl.php?class_id=7");
		menu5.addItem("   电动执行器   ", "dl.php?class_id=8");
		menu5.addItem("   气动执行器   ", "dl.php?class_id=9");
		
		var menu6 = ms.addMenu(document.getElementById("menu6"));
		menu6.addItem("   选型指导   ", "tech.html");
		menu6.addItem("   质量管理   ", "tech1.html");
		menu6.addItem("   产品信息   ", "tech2.html");
		menu6.addItem("   控制系统   ", "tech3.html");
		
		var menu7 = ms.addMenu(document.getElementById("menu7"));
		menu7.addItem("   公司动态   ", "news.php?class_id=1");
		menu7.addItem("   行业动态   ", "news.php?class_id=2");

        mtDropDown.renderAll();
}
function unselect()
{
   return false;
}