function validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,nombre,errors='',args=validateForm.arguments;
  for (i=0; i<(args.length-2); i+=4) { test=args[i+2]; val=findObj(args[i]);
    if (val) { nombre=args[i+3]; nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nombre+' deve contenere un indirizzo e-mail.\n';
      } else if (test!='R') {
        if (isNaN(val)) errors+='- '+nombre+' deve contenere un numero.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
    } } } else if (test.charAt(0) == 'R') errors += '- '+nombre+' mancante.\n'; }
  } if (errors) alert('Attenzione!\n'+errors);
  document.returnValue = (errors == '');
}
/*
form name="form1" method="POST" ENCTYPE="multipart/form-data" action="/newticket.php" onSubmit="validateForm('Subject','','R','Oggetto','Problem','','R','Problema');return  document.returnValue">
*/