// Saluto iniziale
today= new Date();

 if (today.getHours()<13){
document.write  ("Buongiorno, ")
}
else
 if (today.getHours()<18){
document.write ("Buon pomeriggio, ")}
else{
if (today.getHours()<24)
document.write ("Buonasera, ")}


var m = today.getMinutes();
 if (m >=0 && m <=9) {
     
     m = "0" + today.getMinutes();
}