<!--- Roll Over --- 2001.7.9 --->

  if (navigator.appVersion.charAt(0) >= 3) {

     var btnimg = new Array();
     for (i = 0; i < 4; i ++) {
         btnimg[i] = new Image();
     }
     btnimg[0].src = "images/icon_back1.gif";
     btnimg[1].src = "images/icon_back2.gif";
     btnimg[2].src = "../images/icon_back1.gif";
     btnimg[3].src = "../images/icon_back2.gif";
  }

  function change(dim,cnt) {
      if (navigator.appVersion.charAt(0) >= 3) {
         document.images[dim].src = btnimg[cnt].src;
      }
  }