//var pole_img = Array("img/brana.jpg", "img/infoBanner.jpg", "img/katalogBanner.jpg"); // obrázky na úvodní stránce, měli by mít velikost 164 x 233 px 

function change_img(min)
{ 
  if(typeof(imgArr) != "undefined") 
  {
   if(imgArr[min])
     fadeOut2("video",100,min);
  }
}

function change_img2(min)
{  
  var img = document.getElementById('video').getElementsByTagName('IMG')[0];
  //img.src = pole_img[min];
  document.getElementById('video').innerHTML = imgArr[min];

  setOpacity(document.getElementById('video').getElementsByTagName('IMG')[0], 0);
  min++;
  if(min >= imgArr.length)
    min = 0;
    
  fadeIn("video",0);
  window.setTimeout("change_img("+min+")",3000);  
}

function init_mainImages()
{
  /*var img = document.getElementById("imgBrana");
  img.src = pole_img[0];
  
  var polePom = Array(pole_img.length);
  
  for(i = 0; i < pole_img.length; i++)
  {
    polePom[i] = new Image();
    polePom[i].src = pole_img[i];
  }
  */
  
  window.setTimeout('change_img(1)',1000);
}


function foto_click(img)
{
  var mainFoto = document.getElementById("fotoMain");
  var mainImg = mainFoto.src;
  mainFoto.src = img.src;
  img.src = mainImg;
}

function mainfoto_click()
{
  var img = document.getElementById("fotoMain");
  var width = img.width;
  var height = img.height;
  var top = (screen.availHeight / 2) - (height / 2);
  var left = (screen.availWidth / 2) - (width / 2);
  msg = window.open('image.php?url='+img.src, 'nove_okno', 'toolbar=no, menubar=no, cation=no, directories=no, scrollbars=no, location=no, resizable=yes, status=no, width='+width+', height='+height+',top='+top+', left='+left);
}
function open_full(src, width, height)
{
  var top = (screen.availHeight / 2) - (height / 2);
  var left = (screen.availWidth / 2) - (width / 2);
  msg = window.open('image.php?url='+src, 'nove_okno', 'toolbar=no, menubar=no, cation=no, directories=no, scrollbars=no, location=no, resizable=yes, status=no, width='+width+', height='+height+',top='+top+', left='+left);

}

function show_progressbar()
{
  document.write("<style type='text/css'> #fotoMain {visibility: hidden;} </style>");
  image = document.getElementById("fotoMain");
}

function image_click()
{
  image = document.getElementById("fotoMain");
  setOpacity(image, 100);
  image.style.visibility = 'visible';
  fadeOut("fotoMain",100);
}

function image_loaded()
{
 document.getElementById("progressbar").style.display = "none";
  image = document.getElementById("fotoMain");
  setOpacity(image, 0);
  image.style.visibility = 'visible';
  //image.style.display = "inline";
  
  fadeIn("fotoMain",0);
}

function setOpacity(obj, opacity) 
{
  opacity = (opacity == 100)?99.999:opacity;
  obj.style.filter = "alpha(opacity:"+opacity+")";
  obj.style.KHTMLOpacity = opacity/100;
  obj.style.MozOpacity = opacity/100;
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) 
{
  if (document.getElementById) 
  {
    //obj = document.getElementById(objId).getElementsByTagName('IMG')[0];
    var objs = document.getElementById('video').getElementsByTagName('IMG');
    if (opacity <= 100) 
    {
      for(i = 0; i < objs.length; i++)
       setOpacity(objs[i], opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
  }
}

function fadeOut(objId,opacity) 
{
  if (document.getElementById) 
  {
    var objs = document.getElementById('video').getElementsByTagName('IMG');
    //obj = document.getElementById(objId).getElementsByTagName('IMG')[0];
    if (opacity > 0) 
    {
       for(i = 0; i < objs.Lenght; i++)
       {
        setOpacity(objs[i], opacity);
       }
      opacity -= 10;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 100);
    }
    else
    {
      window.close();
    }
  }
}

function fadeOut2(objId,opacity,min) 
{
  if (document.getElementById) 
  {
    var objs = document.getElementById('video').getElementsByTagName('IMG');
   // obj = document.getElementById(objId).getElementsByTagName('IMG')[0];

    if (opacity > 0) 
    {
      for(i = 0; i < objs.length; i++)
       setOpacity(objs[i], opacity);
      opacity -= 10;
      window.setTimeout("fadeOut2('"+objId+"',"+opacity+","+min+")", 100 );
    }
    else
    {
      change_img2(min);
    }
  }
}