function na_preload_img()
{
  var img_list = na_preload_img.arguments;
  if (document.preloadlist == null)
    document.preloadlist = new Array();
  var top = document.preloadlist.length;
  for (var i=0; i < img_list.length; i++) {
    document.preloadlist[top+i] = new Image;
    document.preloadlist[top+i].src = img_list[i+1];
  }
}

function na_change_img_src(name, nsdoc, rpath, preload)
{
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
    return;
  if (img) {
    img.altsrc = img.src;
    img.src    = rpath;
  }
}

function na_restore_img_src(name, nsdoc)
{
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
    return;
  if (img && img.altsrc) {
    img.src    = img.altsrc;
    img.altsrc = null;
  }
}

function openphoto(url) {
  window.open(url,'openphoto','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=512,height=362,screenX=150,screenY=150,top=150,left=150')
}

function CaricaFoto(img){
	foto1= new Image();
	foto1.src=(img);
	Controlla(img);
}
function Controlla(img){
	if((foto1.width!=0)&&(foto1.height!=0)){
		viewFoto(img);
	}
	else{
		funzione="Controlla('"+img+"')";
		intervallo=setTimeout(funzione,20);
	}
}
function viewFoto(img){
	largh=foto1.width+20;
	altez=foto1.height+20;
	stringa="width="+largh+",height="+altez;
	finestra=window.open(img,"",stringa);
}