function showObject() {
document.getElementById('div1').className = 'go';
}
function hideObject() {
document.getElementById('div1').className = 'pop';
}
function showObject2() {
document.getElementById('div2').className = 'go';
}
function hideObject2() {
document.getElementById('div2').className = 'pop';
}
function showObject3() {
document.getElementById('div3').className = 'go';
}
function hideObject3() {
document.getElementById('div3').className = 'pop';
}
function showObject4() {
document.getElementById('div4').className = 'go';
}
function hideObject4() {
document.getElementById('div4').className = 'pop';
}
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);
}