if (mtDropDown.isSupported()) { var ms = new mtDropDownSet(mtDropDown.direction.down, 0, -11, mtDropDown.reference.bottomLeft); 

var menu1 = ms.addMenu(document.getElementById("menu1")); 


var menu2 = ms.addMenu(document.getElementById("menu2")); 
menu2.addItem("About us","aboutus.asp"); 
menu2.addItem("Segment","fenbu.asp");  
menu2.addItem("Culture","wenhua.asp");  


var menu3 = ms.addMenu(document.getElementById("menu3")); 
menu3.addItem("Products","cp_all.asp"); 
menu3.addItem("Equipment","sb_all.asp");  


var menu4 = ms.addMenu(document.getElementById("menu4")); 
menu4.addItem("Technology ","jishu.asp"); 
menu4.addItem("Quality ","zhiliang.asp");  

mtDropDown.renderAll(); }