<!--

var isDHTML = 0;
var isLayers = 0;
var isAll = 0;
var isID = 0;
 
if (document.getElementById) {isID = 1; isDHTML = 1;}
else {
    if (document.all) {isAll = 1; isDHTML = 1;}
    else {
        browserVersion = parseInt(navigator.appVersion);
    if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {isLayers = 1; isDHTML = 1;}
}}
 
function findDOM(objectID,withStyle) {
  if (withStyle == 1) {
    if (isID) { return (document.getElementById(objectID).style) ; }
    else {
      if (isAll) { return (document.all[objectID].style); }
    else {
      if (isLayers) { return (document.layers[objectID]); }
    };}
  }
  else {
    if (isID) { return (document.getElementById(objectID)) ; }
    else {
      if (isAll) { return (document.all[objectID]); }
    else {
      if (isLayers) { return (document.layers[objectID]); }
    };}
  }
}

function getStyle(el, style) {
    if(!document.getElementById) return;
    var value = el.style[style];
    if(!value)
        if(document.defaultView)
            value = document.defaultView.getComputedStyle(el, "").getPropertyValue(style);
        else if(el.currentStyle)
            value = el.currentStyle[style];
    return value;
}


function switchBlock(elemID) {
   DOM = findDOM(elemID, 1); // znajduje DOM elementu w zaleznosci od przegladarki
   DOM1 = findDOM('foto', 0);
   if(DOM.display == 'none' || DOM.display == '') {
      DOM.display = 'block';
   } else {
      DOM.display = 'none';
   }
}


function preload_image(url) {
  if (document.images) {
    var $img = new Image();
    $img.src = url;
  }
}

// End -->