if (mtDropDown.isSupported()) 
{
    var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
				
	var menu1 = ms.addMenu(document.getElementById("menu1"));
	menu1.addItem("<span style='color:#000000; width:70px;'>公交媒体</span>", "Medium.asp?ID=M1");
	menu1.addItem("<span style='color:#000000; width:1px;'>|</span>", "");
	menu1.addItem("<span style='color:#000000; width:70px;'>的士媒体</span>", "Medium.asp?ID=M2");
	menu1.addItem("<span style='color:#000000; width:1px;'>|</span>", "");
	menu1.addItem("<span style='color:#000000; width:70px;'>企业自车身</span>", "Medium.asp?ID=M3");
		
	var menu2 = ms.addMenu(document.getElementById("menu2"));
	menu2.addItem("<span style='color:#000000; width:70px;'>自助选线</span>", "RoadLine.asp");
	menu2.addItem("<span style='color:#000000; width:1px;'>|</span>", "");
	menu2.addItem("<span style='color:#000000; width:70px;'>媒体推广预算</span>", "Diy.asp");
				
	var menu3 = ms.addMenu(document.getElementById("menu3"));
	menu3.addItem("<span style='color:#000000; width:70px;'>宏远简介</span>", "Contact.asp?ID=C1");
	menu3.addItem("<span style='color:#000000; width:1px;'>|</span>", "");
	menu3.addItem("<span style='color:#000000; width:70px;'>联系方法</span>", "Contact.asp?ID=C2");
		
	mtDropDown.renderAll();
}