function Trim(orgString){
  return LTrim(RTrim(orgString));
}

function LTrim(orgString){
  return orgString.replace(/^\s+/,'');
}

function RTrim(orgString){
  return orgString.replace(/\s+$/,'');
}

function checkCampi(form) {
  if (Trim(form.txtCriteriRicerca.value)=="") {
    alert("Criteri ricerca: campo obbligatorio.");
    form.txtCriteriRicerca.focus();   
    return false;
  } 
}

function setFocusLogin() {
  document.frmRicerca.txtCriteriRicerca.focus();   
  return;
}