if (mtDropDown.isSupported()) {
var ms = new mtDropDownSet(mtDropDown.direction.down, 0,0, mtDropDown.reference.bottomLeft);
var Menu1=ms.addMenu(document.getElementById("Menu1"));
Menu1.addItem('    大明简介','/about.html');
Menu1.addItem('    大明风貌','/style.html');
Menu1.addItem('    大明荣誉','/honor.html');
Menu1.addItem('    大明文化','/culture.html');
Menu1.addItem('    专利证书','/patent.html');
Menu1.addItem('    侓师声明','/lssm.html');
mtDropDown.renderAll();
}