function BtCM(flag, position)
{
if ((navigator.userAgent.indexOf("a/3",0) >= 0) || (navigator.userAgent.indexOf("a/4",0) >= 0))
  {
  var NewBtCM = eval(flag + ".src");
  document.images[position].src=NewBtCM;
  }
}

if ((navigator.userAgent.indexOf("a/3",0) >= 0) || (navigator.userAgent.indexOf("a/4",0) >= 0))
{
BtCM1s =  new Image();
BtCM1s.src = "pics/compmenu1.jpg";
BtCM1b =  new Image();
BtCM1b.src = "pics/compmenu1b.jpg";
BtCM2s =  new Image();
BtCM2s.src = "pics/compmenu2.jpg";
BtCM2b =  new Image();
BtCM2b.src = "pics/compmenu2b.jpg";
BtCM3s =  new Image();
BtCM3s.src = "pics/compmenu3.jpg";
BtCM3b =  new Image();
BtCM3b.src = "pics/compmenu3b.jpg";
BtCM4s =  new Image();
BtCM4s.src = "pics/compmenu4.jpg";
BtCM4b =  new Image();
BtCM4b.src = "pics/compmenu4b.jpg";
BtCM5s =  new Image();
BtCM5s.src = "pics/compmenu5.jpg";
BtCM5b =  new Image();
BtCM5b.src = "pics/compmenu5b.jpg";
BtCM6s =  new Image();
BtCM6s.src = "pics/compmenu6.jpg";
BtCM6b =  new Image();
BtCM6b.src = "pics/compmenu6b.jpg";
}