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

var menu21=ms.addMenu(document.getElementById("menu21"));
menu21.addItem("  HISTORY    ", "topic.php?channelID=21&topicID=70");
menu21.addItem("  ORGANIZATION    ", "topic.php?channelID=21&topicID=71");
menu21.addItem("  CAPABILITY    ", "topic.php?channelID=21&topicID=72");
menu21.addItem("  FACILITY    ", "topic.php?channelID=21&topicID=73");
menu21.addItem("  CORE COMPETENCE    ", "topic.php?channelID=21&topicID=74");

var menu22=ms.addMenu(document.getElementById("menu22"));
menu22.addItem("  LEATHER CHAIR    ", "topic.php?channelID=22&topicID=75");
menu22.addItem("  FABRIC CHAIR    ", "topic.php?channelID=22&topicID=76");
menu22.addItem("  MULTI-FUNCTIONAL    ", "topic.php?channelID=22&topicID=77");
menu22.addItem("  NEW PRODUCT    ", "topic.php?channelID=22&topicID=78");

var menu24=ms.addMenu(document.getElementById("menu24"));
menu24.addItem("  Green Products    ", "topic.php?channelID=24&topicID=99");

var menu25=ms.addMenu(document.getElementById("menu25"));
menu25.addItem("  CONTACT US    ", "topic.php?channelID=25&topicID=79");

mtDropDown.renderAll();
}