function HomeUpdateMore() {
  var objMore     = document.getElementById("home_update_item_more");
  var objMoreText = document.getElementById("home_update_more");
  if(objMore.style.display == "block" ) {
    objMore.style.display = "none";
    objMoreText.innerHTML = "more updates";
  }
  else {
    objMore.style.display = "block";
    objMoreText.innerHTML = "less updates";
  }
  objMoreText.title = objMoreText.innerHTML;
}

function HomeRandomImgOver(obj) {
  obj.style.cursor = "pointer";
}
function HomeRandomImgOut(obj) {
  obj.style.cursor = "default";
}

function stateHomeRandomImgLoaded() {
  if (xmlHttp.readyState == 4) {
    document.getElementById("home_top_image").innerHTML = xmlHttp.responseText;
  }
}
function AjaxLoadHomeRandomImg() {
  document.getElementById("home_top_image").innerHTML = "<div class=\"home_ajax_loader\" ><img class=\"ajax_loader_img\" src=\"image/ajax-loader.gif\" alt=\"loading\" /></div>";

  xmlHttp=GetXmlHttpObject();
  if (xmlHttp==null) {
    alert("Your browser does not support AJAX!");
    return;
  }
  var url = "common/ajax.php";
  url = url + "?fn=LoadHomeRandomImg";
  url = url + "&id=" + Math.random();
  xmlHttp.onreadystatechange = stateHomeRandomImgLoaded;
  xmlHttp.open("GET", url, true);
  xmlHttp.send(null);
}