if (mtDropDown.isSupported()) {var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 6, mtDropDown.reference.bottomLeft);var menu1= ms.addMenu(document.getElementById("menu1"));var menu2= ms.addMenu(document.getElementById("menu2"));var menu3= ms.addMenu(document.getElementById("menu3"));var menu4= ms.addMenu(document.getElementById("menu4"));	mtDropDown.renderAll();	}