<!--
function aggiornaContatore(Form){
  maxInput = 800;
  if (Form.testo.value.length > maxInput){
    Form.testo.value= Form.testo.value.substring(0,maxInput);
    Disp = 0;
  }
  else{
    Disp = maxInput - Form.testo.value.length;
  }
  Form.caratteri.value = Disp;
}
-->