if (mtDropDown.isSupported()) {

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


// menu : #1
var menu1 = ms.addMenu(document.getElementById("menu1"));
menu1.addItem("who we are", zepath+"about_who.htm", "_top");
menu1.addItem("people", zepath+"about_people.htm", "_top");

var menu2 = ms.addMenu(document.getElementById("menu2"));
menu2.addItem("what we do", zepath+"work_01.htm", "_top");
menu2.addItem("worldwide", zepath+"work_02.htm", "_top");

mtDropDown.renderAll();
}