var imageUrls = new Array();
  imageUrls[0] = new Array('dostawa.png');
  imageUrls[1] = new Array('dostawa.jpg');

  var activeImage = 0;
  
  function swapImage(index)
  {
    activeImage = index;
    document.mainImg.src = imageUrls[index][0];
  }

    var imageUrls00 = new Array();
  imageUrls00[0] = new Array('dostawa_b1.png');
  imageUrls00[1] = new Array('dostawa_b.png');

  var activeImage00 = 0;
  
  function swapImage00(index)
  {
    activeImage = index;
    document.mainImg00.src = imageUrls00[index][0];
  }
  
    var imageUrls1 = new Array();
  imageUrls1[0] = new Array('lodzie.png');
  imageUrls1[1] = new Array('lodzie.jpg');
  var activeImage1 = 0;

  function swapImage1(index)
  {
    activeImage = index;
    document.mainImg1.src = imageUrls1[index][0];
  }
    
    var imageUrls11 = new Array();
  imageUrls11[0] = new Array('lodzie_b1.png');
  imageUrls11[1] = new Array('lodzie_b.png');
  var activeImage11 = 0;

  function swapImage11(index)
  {
    activeImage = index;
    document.mainImg11.src = imageUrls11[index][0];
  }
  
      var imageUrls2 = new Array();
  imageUrls2[0] = new Array('firma.png');
  imageUrls2[1] = new Array('firma.jpg');

  var activeImage2 = 0;
  
  function swapImage2(index)
  {
    activeImage = index;
    document.mainImg2.src = imageUrls2[index][0];
  }
  
      var imageUrls22 = new Array();
  imageUrls22[0] = new Array('kontakt_b1.png');
  imageUrls22[1] = new Array('kontakt_b.png');

  var activeImage22 = 0;
  
  function swapImage22(index)
  {
    activeImage = index;
    document.mainImg22.src = imageUrls22[index][0];
  }
  
      var imageUrls3 = new Array();
  imageUrls3[0] = new Array('promocje.png');
  imageUrls3[1] = new Array('promocje_.png');

  var activeImage3 = 0;
  
  function swapImage3(index)
  {
    activeImage = index;
    document.mainImg3.src = imageUrls3[index][0];
  }