function foto(filename) {
document.write('<img width="70" height="70" src="' + filename + '" border="1" >');
}

function thumbnails(path,num_pict) {

 for(i=1;i<=num_pict;i++) {
  name1 = "alunni/attuale/"  + path + "/picture" + i + ".jpg";
	foto(name1);	
 }

}