grazieeeeeeeeeee

Metto cosa ho fatto tanto per far capire eventualmente qualcosa a chi cercasse in futuro
Codice PHP:

                
if (sendReq.readyState == || sendReq.readyState == 0) {
                    
sendReq.open("POST"'getChat.php?main=1&last=' lastMessagetrue);
                    
sendReq.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
                    
sendReq.onreadystatechange handleSendChat
                    var 
param 'message=' encodeURIComponent(document.getElementById('txt_message').value);
               
                    
sendReq.send(param);
                    
encodeURIComponent(document.getElementById('txt_message').value);                }                           
            }