//apri Pop Up (foto gallery)

function openFG() {
	
	if ( arguments.length > 0 ) destinationPage = arguments[0];
	else destinationPage = "";
	destinationUrl = "fotogallery/"+destinationPage;
	window.open( destinationUrl ,'','width=740,height=530,scrollbars=no');
	}

//cambia src del frame

function changeFrameContent( newSrc , newDesc ) {
	
	url= "../../../foto_gallery_response.php?newSrc="+newSrc+"&newDesc="+newDesc;
	dest = 'frame';
	imgPath = '<img src="../../../../img/loading.gif" class="no_border" width="32" height="32" border="0" />';
	
	callAHAH( url , dest , imgPath , 'È stato rilevato un errore !!' );

	}

//inizio funzioni AJAX

function callAHAH(url, pageElement, callMessage, errorMessage) {
   
   document.getElementById(pageElement).innerHTML = callMessage;
   
   try {
   	req = new XMLHttpRequest(); /* e.g. Firefox */
   	} 
   catch(e) {
   	try {req = new ActiveXObject("Msxml2.XMLHTTP");  /* some versions IE */
   		}
   		catch (e) {
   			try {
   				req = new ActiveXObject("Microsoft.XMLHTTP");  /* some versions IE */
   				}
   				catch (E) {
   					req = false;
   					}
   		   } 
      }
   
   req.onreadystatechange = function() {
   	responseAHAH(pageElement, errorMessage);
   	};
   req.open("GET",url,true);
   req.send(null);
  }

function responseAHAH(pageElement, errorMessage) {
   var output = '';
   if(req.readyState == 4) {
      if(req.status == 200) {
         output = req.responseText;
         document.getElementById(pageElement).innerHTML = output;
         } else {
         document.getElementById(pageElement).innerHTML = errorMessage+"\n"+output;
         }
      }
  }

//fine funzioni AJAX