function changeImg(imgFile) {
	document['photo_big'].src = imgFile;
}

function finestra(url,windowName,w,h){
	externimg=window.open(url, windowName,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+w+',height='+h);
	externimg.focus();
}