if (document.images) {
  SPBUT1on = new Image(); SPBUT1on.src = "img/spbutb-2x1.gif";
  SPBUT1off = new Image(); SPBUT1off.src = "img/spbut-2x1.gif";
  SPBUT2on = new Image(); SPBUT2on.src = "img/spbutb-3x1.gif";
  SPBUT2off = new Image(); SPBUT2off.src = "img/spbut-3x1.gif";
  SPBUT3on = new Image(); SPBUT3on.src = "img/spbutb-4x1.gif";
  SPBUT3off = new Image(); SPBUT3off.src = "img/spbut-4x1.gif";
  SPBUT4on = new Image(); SPBUT4on.src = "img/spbutb-5x1.gif";
  SPBUT4off = new Image(); SPBUT4off.src = "img/spbut-5x1.gif";
  SPBUT5on = new Image(); SPBUT5on.src = "img/spbutb-6x1.gif";
  SPBUT5off = new Image(); SPBUT5off.src = "img/spbut-6x1.gif";
  SPBUT6on = new Image(); SPBUT6on.src = "img/spbutb-7x1.gif";
  SPBUT6off = new Image(); SPBUT6off.src = "img/spbut-7x1.gif";
  SPBUT7on = new Image(); SPBUT7on.src = "img/spbutb-8x1.gif";
  SPBUT7off = new Image(); SPBUT7off.src = "img/spbut-8x1.gif";
  SPBUT8on = new Image(); SPBUT8on.src = "img/spbutb-9x1.gif";
  SPBUT8off = new Image(); SPBUT8off.src = "img/spbut-9x1.gif";
  SPBUT9on = new Image(); SPBUT9on.src = "img/spbutb-10x1.gif";
  SPBUT9off = new Image(); SPBUT9off.src = "img/spbut-10x1.gif";
  SPBUT10on = new Image(); SPBUT10on.src = "img/spbutb-11x1.gif";
  SPBUT10off = new Image(); SPBUT10off.src = "img/spbut-11x1.gif";
  
  NEVMANon = new Image(); NEVMANon.src = "img/sp-2x1b.gif";
  NEVMANoff = new Image(); NEVMANoff.src = "img/sp-2x1.gif";
  BINGOon = new Image(); BINGOon.src = "img/sp-3x1b.gif";
  BINGOoff = new Image(); BINGOoff.src = "img/sp-3x1.gif";
}
function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}