function checknl(){
var nomeu, passw, cdc, cond, i, par, rannl;
i=0;
nomeu = document.getElementById('nomenl').value;
passw = document.getElementById('emailnl').value;
cdc = document.getElementById('cdcnl').value;
rannl = document.getElementById('rannl').value;
cond = document.getElementById('condnl').checked;
 
  if (nomeu == ""){
  i++;
  }

  if (passw == ""){
  i++;
  }
  
  if (cdc == ""){
  i++;
  }

  if (!cond){
  i++;
  }
  
  if (i > 0){
  
    if (document.all){
    document.all['nler'].style.visibility = "visible"; 
    }
    else
    {
	
      if(document.getElementById) {
      document.getElementById('nler').style.visibility = "visible";
      }
    }
  
  
  }
  else
  {
  par = "nome=" + nomeu + "&email=" + passw + "&codice=" + cdc + "&rannl=" + rannl;
  cc('corpo2', 'vernl.php', 'post', par);
  }
}

function nl_enter(event){
var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
  if (keyCode == 13) {
  checknl();
  }
}

function nlfocus(){

    if (document.all){
    document.all['nler'].style.visibility = "hidden"; 
    }
    else
    {
	
      if(document.getElementById) {
      document.getElementById('nler').style.visibility = "hidden";
      }
    }
  
}