var cache1, cache2;
cache1 = new Image(15, 143);
cache1.src = "is/01_1.gif";
cache2 = new Image(15,143);
cache2.src = "is/01a_1.gif";
cache3 = new Image(15, 143);
cache3.src = "is/03_1.gif";
cache4 = new Image(15,143);
cache4.src = "is/03a_1.gif";
cache5 = new Image(15, 143);
cache5.src = "is/05_1.gif";
cache6 = new Image(15,143);
cache6.src = "is/05a_1.gif";
cache7 = new Image(15, 143);
cache7.src = "is/07_1.gif";
cache8 = new Image(15,143);
cache8.src = "is/07a_1.gif";
cache9 = new Image(15, 143);
cache9.src = "is/09_1.gif";
cache10 = new Image(15,143);
cache10.src = "is/09a_1.gif";
cache11 = new Image(15, 143);
cache11.src = "is/11_1.gif";
cache12 = new Image(15,143);
cache12.src = "is/11a_1.gif";
cache13 = new Image(15, 143);
cache13.src = "is/13_1.gif";
cache14 = new Image(15,143);
cache14.src = "is/13a_1.gif";
cache15 = new Image(15, 143);
cache15.src = "is/15_1.gif";
cache16 = new Image(15,143);
cache16.src = "is/15a_1.gif";

cache17 = new Image(15, 143);
cache17.src = "is/17_1.gif";
cache18 = new Image(15,143);
cache18.src = "is/17a_1.gif";

cache19 = new Image(15, 143);
cache19.src = "is/19_1.gif";
cache20 = new Image(15,143);
cache20.src = "is/19a_1.gif";

function doOver() {
  var e;
  e = window.event.srcElement;
  if (e.tagName == "IMG") {
     e.src = e.oversrc;
  }
}
function doOut() {
  var e;
  e = window.event.srcElement;
  if (e.tagName == "IMG") {
     e.src = e.normsrc;
  }
}