function reDo(){
  window.location.reload()
}

function setResize(){
  setTimeout("window.onresize=reDo",500);
}

function move_in(img_name,img_src) {
  document[img_name].src=img_src;
}

function newWindow(filename, win_width, win_height){

  wt = win_width
  ht = win_height

  leftPos = 0

  if (screen){
    leftPos = (screen.width / 2) - (wt / 2)
    topPos = (screen.height / 2) - (ht / 2)
  }
  smallWindow = window.open(filename,'newWin','width='+wt+',height='+ht+',left='+leftPos+',top=10,resixable=no,scrollbars=yes,toolbar=no,directories=no,location=no,status=no')
}

if(document.layers){
  window.onload = setResize;
}

var preload0 = new Image();
var preload1 = new Image();
var preload2 = new Image();
var preload3 = new Image();

preload0.src = "images/button_1_on.gif";
preload1.src = "images/button_2_on.gif";
preload2.src = "images/button_3_on.gif";
preload3.src = "images/button_4_on.gif";