function changeImg(cImg,ref)
{
  document.images[cImg].src = ref.src;
}

menu1 = new Image(71,71)
menu1.src = "images/about_us2.jpg"
menu1s = new Image(71,71)
menu1s.src = "images/about_us1.jpg"
menu2 = new Image(71,71)
menu2.src = "images/BROKERAGE2.jpg"
menu2s = new Image(71,71)
menu2s.src = "images/BROKERAGE1.jpg"
menu3 = new Image(71,71)
menu3.src = "images/distribution2.jpg"
menu3s = new Image(71,71)
menu3s.src = "images/distribution1.jpg"
menu4 = new Image(71,71)
menu4.src = "images/documents2.jpg"
menu4s = new Image(71,71)
menu4s.src = "images/documents1.jpg"
menu5 = new Image(71,71);
menu5.src = "images/job2.jpg";
menu5s = new Image(71,71);
menu5s.src = "images/job1.jpg";
menu6 = new Image(71,71);
menu6.src = "images/exhibition2.jpg";
menu6s = new Image(71,71);
menu6s.src = "images/exhibition1.jpg";
menu7 = new Image(71,71);
menu7.src = "images/perishable2.jpg";
menu7s = new Image(71,71);
menu7s.src = "images/perishable1.jpg";
menu8 = new Image(71,71);
menu8.src = "images/special_pr2.jpg";
menu8s = new Image(71,71);
menu8s.src = "images/special_pr1.jpg";
menu9 = new Image(71,71);
menu9.src = "images/track2.jpg";
menu9s = new Image(71,71);
menu9s.src = "images/track1.jpg";
menu10 = new Image(71,71);
menu10.src = "images/contact2.jpg";
menu10s = new Image(71,71);
menu10s.src = "images/contact1.jpg";
menu11 = new Image(71,71);
menu11.src = "images/home2.jpg";
menu11s = new Image(71,71);
menu11s.src = "images/home1.jpg";