function collezione_desc(objID) {
 $$('div.iframe').each(function(item, index){ item.setStyles({ visibility: 'hidden'}); });
 $(objID).setStyles({ visibility: 'visible'});
};


function externalLinks() {
 var i, obj;
 for (i=0; (obj = document.getElementsByTagName("a")[i]); i++) {
	 if ((obj.getAttribute("rel").indexOf('external')>-1) || (obj.getAttribute("class").indexOf('external')>-1)) {
   obj.target = '_new';
  };
 };
};

window.onLoad = externalLinks();

function loadAjax(url, target) {
  document.getElementById(target).innerHTML = ' Fetching data...';
  if (window.XMLHttpRequest) {
    req = new XMLHttpRequest();
  } else if (window.ActiveXObject) {
    req = new ActiveXObject("Microsoft.XMLHTTP");
  }
  if (req != undefined) {
    req.onreadystatechange = function() {loadAjaxDone(url, target);};
    req.open("GET", url, true);
    req.send("");
  }
}

function loadAjaxDone(url, target) {
  if (req.readyState == 4) { // only if req is "loaded"
    if (req.status == 200) { // only if "OK"
      document.getElementById(target).innerHTML = req.responseText;
    } else {
      document.getElementById(target).innerHTML=" loadAjax Error:\n"+ req.status + "\n" +req.statusText;
    }
  }
}

function load(name, div) {
	loadAjax(name,div);
	return false;
}