if (mtDropDown.isSupported()) {
	var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
	var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("Overview", "http://www.astroconsultant.kr/about_us/overview.php"); 
		menu1.addItem("Vision of Astro", "http://www.astroconsultant.kr/about_us/visionofastro.php"); 


	var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("Shipbroking", "http://www.astroconsultant.kr/business/shipbroking.php"); 
		menu2.addItem("Business Deal", "http://www.astroconsultant.kr/business/business_deal.php"); 
		menu2.addItem("Shipbuilding Management", "http://www.astroconsultant.kr/business/agency.php"); 
		menu2.addItem("Marine Equipment", "http://www.astroconsultant.kr/bbs/board.php?bo_table=marine_equipment"); 
		menu2.addItem("Engine Ship Spare Part", "http://www.astroconsultant.kr/business/doosan_engine.php"); 

			var subMenu2 = menu2.addMenu(menu2.items[2]);
				subMenu2.addItem("Agency", "http://www.astroconsultant.kr/business/agency.php");
				subMenu2.addItem("Manpower", "http://www.astroconsultant.kr/business/manpower.php");
				subMenu2.addItem("Safety Gears", "http://www.astroconsultant.kr/shop/list.php?ca_id=10");
				






	mtDropDown.renderAll();
}