/* banner */

var images  = new Array('im1.jpg' , 'im2.jpg', 'im3.jpg' );
  var show_time = 1000; // w milisekundach
  var change_time = 1000; // w milisekundach
  
  ///---------------------------------------
  
  var delay = change_time / 100;
  
  var currentBanner = 1;
  var previousBanner = 1;
  var image_one = document.getElementById('banner_image');
  var image_two = document.getElementById('banner_image2');
  var opacity = 100;
  var dir = -1;

  setTimeout("rotateBanner()", show_time);

  function rotateBanner()
  {
     if (++currentBanner > images.length)
     {
         currentBanner = 1;
         previousBanner = images.length;
     }
     else
     {
         previousBanner = currentBanner - 1;
     }
     
     if (dir < 0)
     {
          image_one.setAttribute('src', 'http://{SITE_URL}/templates/mizaral/gfx/banery/'+images[currentBanner-1]);
     }
     else
     {
         image_two.setAttribute('src', images[currentBanner-1]);
     }

    if (images.length > 1)
    {
           setOpacity();
    }

  }

  function setOpacity()
  {
       if (((opacity + dir) > 0) && ((opacity + dir) < 100))
       {
           opacity += dir;
           image_two.style.opacity = opacity/100;
           image_two.style.filter = 'alpha(opacity=' + opacity + ')';
           setTimeout("setOpacity()", delay);
       }
       else
       {
           dir = - dir;
           setTimeout("rotateBanner()", show_time);
       }
  }
//  setOpacity();