if(document.images) {
  bf00on = new Image;
  bf00off = new Image;
  bf00t = new Image;
  bf01on = new Image;
  bf01off = new Image;
  bf01t = new Image;
  bf02on = new Image;
  bf02off = new Image;
  bf02t = new Image;
  bf03on = new Image;
  bf03off = new Image;
  bf03t = new Image;
  bf04on = new Image;
  bf04off = new Image;
  bf04t = new Image;
  bf05on = new Image;
  bf05off = new Image;
  bf05t = new Image;
  bf06on = new Image;
  bf06off = new Image;
  bf06t = new Image;
  bf07on = new Image;
  bf07off = new Image;
  bf07t = new Image;
  bf08on = new Image;
  bf08off = new Image;
  bf08t = new Image;
  bf09on = new Image;
  bf09off = new Image;
  bf09t = new Image;
  bf10on = new Image;
  bf10off = new Image;
  bf10t = new Image;
  bf11on = new Image;
  bf11off = new Image;
  bf11t = new Image;
  bf12on = new Image;
  bf12off = new Image;
  bf12t = new Image;
  bf13on = new Image;
  bf13off = new Image;
  bf13t = new Image;
  bf14on = new Image;
  bf14off = new Image;
  bf14t = new Image;
  bf15on = new Image;
  bf15off = new Image;
  bf15t = new Image;
  bf16on = new Image;
  bf16off = new Image;
  bf16t = new Image;
  bf17on = new Image;
  bf17off = new Image;
  bf17t = new Image;
  bf18on = new Image;
  bf18off = new Image;
  bf18t = new Image;
  bf19on = new Image;
  bf19off = new Image;
  bf19t = new Image;
// source images
  bf00on.src = "../images/bf00.gif";
  bf00off.src = "../images/bf00.gif";
  bf00t.src = "../images/bf00.gif";
  bf01on.src = "../images/bf01on.gif";
  bf01off.src = "../images/bf01off.gif";
  bf01t.src = "../images/bf01t.gif";
  bf02on.src = "../images/bf02on.gif";
  bf02off.src = "../images/bf02off.gif";
  bf02t.src = "../images/bf02t.gif";
  bf03on.src = "../images/bf03on.gif";
  bf03off.src = "../images/bf03off.gif";
  bf03t.src = "../images/bf03t.gif";
  bf04on.src = "../images/bf04on.gif";
  bf04off.src = "../images/bf04off.gif";
  bf04t.src = "../images/bf04t.gif";
  bf05on.src = "../images/bf05on.gif";
  bf05off.src = "../images/bf05off.gif";
  bf05t.src = "../images/bf05t.gif";
  bf06on.src = "../images/bf06on.gif";
  bf06off.src = "../images/bf06off.gif";
  bf06t.src = "../images/bf06t.gif";
  bf07on.src = "../images/bf07on.gif";
  bf07off.src = "../images/bf07off.gif";
  bf07t.src = "../images/bf07t.gif";
  bf08on.src = "../images/bf08on.gif";
  bf08off.src = "../images/bf08off.gif";
  bf08t.src = "../images/bf08t.gif";
  bf09on.src = "../images/bf09on.gif";
  bf09off.src = "../images/bf09off.gif";
  bf09t.src = "../images/bf09t.gif";
  bf10on.src = "../images/bf10on.gif";
  bf10off.src = "../images/bf10off.gif";
  bf10t.src = "../images/bf10t.gif";
  bf11on.src = "../images/bf11on.gif";
  bf11off.src = "../images/bf11off.gif";
  bf11t.src = "../images/bf11t.gif";
  bf12on.src = "../images/bf12on.gif";
  bf12off.src = "../images/bf12off.gif";
  bf12t.src = "../images/bf12t.gif";
  bf13on.src = "../images/bf13on.gif";
  bf13off.src = "../images/bf13off.gif";
  bf13t.src = "../images/bf13t.gif";
  bf14on.src = "../images/bf14on.gif";
  bf14off.src = "../images/bf14off.gif";
  bf14t.src = "../images/bf14t.gif";
  bf15on.src = "../images/bf15on.gif";
  bf15off.src = "../images/bf15off.gif";
  bf15t.src = "../images/bf15t.gif";
  bf16on.src = "../images/bf16on.gif";
  bf16off.src = "../images/bf16off.gif";
  bf16t.src = "../images/bf16t.gif";
  bf17on.src = "../images/bf17on.gif";
  bf17off.src = "../images/bf17off.gif";
  bf17t.src = "../images/bf17t.gif";
  bf18on.src = "../images/bf18on.gif";
  bf18off.src = "../images/bf18off.gif";
  bf18t.src = "../images/bf18t.gif";
  bf19on.src = "../images/bf19on.gif";
  bf19off.src = "../images/bf19off.gif";
  bf19t.src = "../images/bf19t.gif";
}
// MouseOver Function
function swapOn(imgLocation, toppic) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "on.src");
    document.images[toppic].src = eval(imgLocation + "t.src");
  }
}
// MouseOut Function
function swapOff(imgLocation, toppic) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "off.src");
    document.images[toppic].src = "../images/bf00.gif";
  }
}