var hiImgArray = new Array();
var offImgArray = new Array();
function myPreloadGalleryImages() { 
  hiImgArray["preloadSG"] = new Image(30,27);
  hiImgArray["preloadS"] = new Image(30,27);
  hiImgArray["preloadSY"] = new Image(30,27);
  hiImgArray["preloadSG"].src = "pic/gm/gm-sg.gif";
  hiImgArray["preloadS"].src = "pic/gm/gm-s.gif";
  hiImgArray["preloadSY"].src = "pic/gm/gm-sy.gif";

  offImgArray["preloadSG"] = new Image(30,27);
  offImgArray["preloadS"] = new Image(30,27);
  offImgArray["preloadSY"] = new Image(30,27);
  offImgArray["preloadSG"].src = "pic/gm/gm-nsg.gif";
  offImgArray["preloadS"].src = "pic/gm/shim.gif";
  offImgArray["preloadSY"].src = "pic/gm/gm-nsy.gif";
}
function mySwapAll(galleryNum) {
  if ((document.images) && (offImgArray["preloadSY"] != null)) {
    document.images["ImgSG_" + galleryNum].src = hiImgArray["preloadSG"].src;
    document.images["ImgS1_" + galleryNum].src = hiImgArray["preloadS"].src;
    document.images["ImgSY_" + galleryNum].src = hiImgArray["preloadSY"].src;
    document.images["ImgS2_" + galleryNum].src = hiImgArray["preloadS"].src;
    document.images["ImgS3_" + galleryNum].src = hiImgArray["preloadS"].src;
    document.images["ImgS4_" + galleryNum].src = hiImgArray["preloadS"].src;
    document.images["ImgS5_" + galleryNum].src = hiImgArray["preloadS"].src;
    document.images["ImgS6_" + galleryNum].src = hiImgArray["preloadS"].src;
  }
}
function myRestoreAll(galleryNum) {
  if ((document.images) && (offImgArray["preloadSY"] != null)) {
    document.images["ImgSG_" + galleryNum].src = offImgArray["preloadSG"].src;
    document.images["ImgS1_" + galleryNum].src = offImgArray["preloadS"].src;
    document.images["ImgSY_" + galleryNum].src = offImgArray["preloadSY"].src;
    document.images["ImgS2_" + galleryNum].src = offImgArray["preloadS"].src;
    document.images["ImgS3_" + galleryNum].src = offImgArray["preloadS"].src;
    document.images["ImgS4_" + galleryNum].src = offImgArray["preloadS"].src;
    document.images["ImgS5_" + galleryNum].src = offImgArray["preloadS"].src;
    document.images["ImgS6_" + galleryNum].src = offImgArray["preloadS"].src;
  }
}