pad.style.display="none";
   for(var i=1;i<len;i++){
    var Row=pad.insertRow(i-1);
    menu.addMenuPadItem(ary[i],Row);
   }
   menu.pads[index]=pad;
  }

  //各子菜单按钮
  this.addMenuPadItem=function(ary,Row){
    var Cell=Row.insertCell(0);
    if(ary[0]!="--"){
     Cell.innerText=ary[0];
     if(ary){  //有效状态;
      Cell.className=id+"_padItem";
      Cell.onmouseover=function(){
       Cell.className=id+"_padItemHover";
       window.status=ary;
      }
      Cell.onmouseout=function(){
       Cell.className=id+"_padItem";
       window.status="";
      }
      Cell.onmousedown=function(){ Cell.className=id+"_padItemDown"; }
      Cell.onmouseup=function(){
       Cell.className=id+"_padItemHover";
       menu.hideMenu();
       menu.execute(ary);
      }
     }
     else{  //按钮无效;
      Cell.className=id+"_padItemFalse";
      Cell.onmouseover=function(){
       Cell.className=id+"_padItemFalseHover";
       window.status=ary;
      }
      Cell.onmouseout=function(){
       Cell.className=id+"_padItemFalse";
       window.status="";
      }
     }
    }
    else{
     var hr=menu.crtElement("hr",Cell);
     hr.className=id+"_hr";
    }
    Cell.onclick=function(){
     event.cancelBubble=true;
    }
  }

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