//
//
// LAYER SHOW/HIDE AND CONTENT ALTERING FUNCTIONS
//
//
var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {
 browserType= "gecko"
}



function altercontent(){
  if (document.all) {
    ostoskori.innerHTML=mycontent[i];
  } else if (document.getElementById) {
    rng = document.createRange();
    el = document.getElementById("ostoskori");
    rng.setStartBefore(el);
    htmlFrag = rng.createContextualFragment(mycontent[i]);
    while (el.hasChildNodes()) {
      el.removeChild(el.lastChild);
    }
    el.appendChild(htmlFrag);
  }
  
}



function getXmlHttpObj() {

  var xmlHttp;
  try  {
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
  } catch (e) {
     // Internet Explorer
     try  {
       xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
     } catch (e) {
       try {
         xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
       } catch (e) {
          alert("Your browser does not support AJAX!");
          return false;
       }
    }
  }

  return xmlHttp;
}





function setDivContent(divId, content) {
  if (document.all) {
    eval(divId +".innerHTML=content;");
  } else if (document.getElementById) {
    rng = document.createRange();
    eval("el = document.getElementById('" +divId +"');");
    rng.setStartBefore(el);
    htmlFrag = rng.createContextualFragment(content);
    while (el.hasChildNodes()) {
      el.removeChild(el.lastChild);
    }
    el.appendChild(htmlFrag);
  }
}



function hideLayer(layerId) {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("' +layerId +'")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("' +layerId +'")');
  else
     document.poppedLayer =   
        eval('document.layers["' +layerId +'"]');
  document.poppedLayer.style.display = "none";
  document.poppedLayer.style.visibility = "hidden";
}

function showLayer(layerId) {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("' +layerId +'")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("' +layerId +'")');
  else
     document.poppedLayer = 
         eval('document.layers["' +layerId +'"]');
  document.poppedLayer.style.display = "inline";
  document.poppedLayer.style.visibility = "visible";

}