Change the function for the timer to the following:
js code:
function OnEvent_Timer(sTimerId) {
var oChat = oChatWnds[sTimerId];
var Message = oChatWnds[sTimerId].Message.charAt(oChatWnds[sTimerId].i);
if (Message === '/') Message = '//';
++oChatWnds[sTimerId].i;
oChat.Wnd.SendMessage(Message);
if (oChatWnd[sTimerId].i === oChatWnd[sTimerId].Message.length)
delete oChatWnd[sTimerId];
else
MsgPlus.AddTimer(sTimerId, 5000);
}