function popImage(imageURL, imageTitle)
  {
  var imgWin = window.open('','_blank','scrollbars=no,resizable=1,width=600,height=400,left=10,top=10');
  if(!imgWin)
    return true; //popup blockers should not cause errors
  imgWin.document.write('<html><head><title>' + imageTitle + '<\/title><script type="text\/javascript">\n' +
      'function resizeWinTo() {\n' +
      'if( !document.images.length ) { document.images[0] = document.layers[0].images[0]; }' +
      'var oH = document.images[0].height, oW = document.images[0].width;\n' +
      'if( !oH || window.doneAlready ) { return; }\n' + //in case images are disabled
      'window.doneAlready = true;\n' + //for Safari and Opera
      'var x = window; x.resizeTo( oW + 200, oH + 200 );\n' +
      'var myW = 0, myH = 0, d = x.document.documentElement, b = x.document.body;\n' +
      'if( x.innerWidth ) { myW = x.innerWidth; myH = x.innerHeight; }\n' +
      'else if( d && d.clientWidth ) { myW = d.clientWidth; myH = d.clientHeight; }\n' +
      'else if( b && b.clientWidth ) { myW = b.clientWidth; myH = b.clientHeight; }\n' +
      'if( window.opera && !document.childNodes ) { myW += 16; }\n' +
      'x.resizeTo( oW = oW + ( ( oW + 200 ) - myW ), oH = oH + ( (oH + 200 ) - myH ) );\n' +
      'var scW = screen.availWidth ? screen.availWidth : screen.width;\n' +
      'var scH = screen.availHeight ? screen.availHeight : screen.height;\n' +
      'if( !window.opera ) { x.moveTo(Math.round((scW-oW)/2),Math.round((scH-oH)/2)); }\n' +
      '}\n' +
      '<\/script>' +
      '<\/head><body onload="resizeWinTo();" onblur="self.close();">' +
      (document.layers ? ('<layer left="0" top="0">') : ('<div style="position:absolute;left:0px;top:0px;display:table;">')) +
      '<img src=' + imageURL + ' alt="Loading image ..." title="" onload="resizeWinTo();">' +
      (document.layers ? '<\/layer>' : '<\/div>') + '<\/body><\/html>');
  imgWin.document.close();
  }

function checkform(f)
  {
  if(f.nome.value == '')
    {
    alert("Inserire nome e cognome");
    f.nome.focus();
    return false;
    }
  if(f.email.value == '')
    {
    alert("Inserire email valida");
    f.email.focus();
    return false;
    }
  if(!f.privacy.checked)
    {
    alert("Devi accettare la Privacy");
    return false;
    }
  f.send.value = 1;
  return true;
  }

