if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("- Company overview","about_us.asp?ChannelID=4"); // send no URL if nothing should happen onclick
		menu1.addItem("- Enterprise Culture","about_us.asp?ChannelID=5"); // send no URL if nothing should happen onclick
		menu1.addItem("- Organization Structure","about_us.asp?ChannelID=8"); // send no URL if nothing should happen onclick
		menu1.addItem("- Scientist Team","about_us.asp?ChannelID=9");
		menu1.addItem("- R&D","about_us.asp?ChannelID=10");
		menu1.addItem("- QA&QC","about_us.asp?ChannelID=11");
		menu1.addItem("- Production Base","about_us.asp?ChannelID=12");
		menu1.addItem("- Certificates","Certificates.asp");
	
//第二菜单

	
		// menu : 2
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- Key Products", "Product.asp?PicClassID=4");
		menu2.addItem("- Standard Herbal Extract", "Standard_Herbal_Extract.asp");
		menu2.addItem("- Tea Extract", "Tea_Extracts.asp");
		menu2.addItem("- API & Monomers", "API_Monomers.asp");
		menu2.addItem("- Fungi Extract", "Fungi_Extract.asp");
		menu2.addItem("- Natural Beverage Ingredients", "Natural_Beverage_Ingredients.asp");
		menu2.addItem("- Herbal Formula", "Herbal_Formula.asp");
		
		// menu : 3
		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("- Sunfull News", "news.asp?ArtClassID=10");
		menu3.addItem("- Industry News", "news.asp?ArtClassID=11");
		
				// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("- Tracking", "service.asp?ChannelID=19");
		menu4.addItem("- Complaints", "complaints.asp");
		menu4.addItem("- Inquiry or Samples request", "Feedback.asp");
		menu4.addItem("- Customer Satisfaction Survey", "service.asp?ChannelID=22");
		menu4.addItem("- Download", "Download.asp");
		
		// menu : 5
		var menu5 = ms.addMenu(document.getElementById("menu5"));
		menu5.addItem("- Talent View ", "job.asp?ChannelID=15");
		menu5.addItem("- C&B Policy", "job.asp?ChannelID=16");
		menu5.addItem("- Jobs", "job.asp?ChannelID=17");

			// menu : 6
		var menu6 = ms.addMenu(document.getElementById("menu6"));
		menu6.addItem("- Contact Us", "contact_us.asp?ChannelID=7");
		menu6.addItem("- Message", "book.asp");

		mtDropDown.renderAll();
	}