var bName = navigator.appName.substring(0,8);
  var bVer  = parseInt(navigator.appVersion);
  var javasup  = 0;

  if(bName=="Netscape" && bVer>=3) javasup = 1;
  if(bName=="Microsof" && bVer>=4) javasup = 1;

  if(javasup)
  {
    var TabImages = new makeArray(14);
  }

function makeArray(n) 
{
  this.length = n;
  for (var i = 0; i<n; i++ )
    this[i] = new Image();
  return this;
}

function LoadImages1()
{
  if(javasup==1)
  {
    TabImages[0].src = "images/1strona/m-of.gif";
    TabImages[1].src = "images/1strona/mr-of.gif";
    TabImages[2].src = "images/1strona/m-op.gif";
    TabImages[3].src = "images/1strona/mr-op.gif";
    TabImages[4].src = "images/1strona/m-wm.gif";
    TabImages[5].src = "images/1strona/mr-wm.gif";
    TabImages[6].src = "images/1strona/m-cp.gif";
    TabImages[7].src = "images/1strona/mr-cp.gif";
    TabImages[8].src = "images/1strona/m-k.gif";
    TabImages[9].src = "images/1strona/mr-k.gif";
  }
}

function LoadImages2()
{
  if(javasup==1)
  {
    TabImages[0].src = "images/bstronag.gif";
    TabImages[1].src = "images/rstronag.gif";
    TabImages[2].src = "images/bofirmie.gif";
    TabImages[3].src = "images/rofirmie.gif";
    TabImages[4].src = "images/bzastosowanie.gif";
    TabImages[5].src = "images/rzastosowanie.gif";
    TabImages[6].src = "images/bwlasciwosci.gif";
    TabImages[7].src = "images/rwlasciwosci.gif";
    TabImages[8].src = "images/bcennik.gif";
    TabImages[9].src = "images/rcennik.gif";
    TabImages[10].src = "images/boferta.gif";
    TabImages[11].src = "images/roferta.gif";
    TabImages[12].src = "images/bkontakt.gif";
    TabImages[13].src = "images/rkontakt.gif";
  }
}

function chImage(name, nri)
{
  if(javasup==1)
    document[name].src=TabImages[nri].src;
}