Shoutbox

The last 'return "" ' should be outside the brackets, so it works for both when OldName has, and hasn't got a value
You forgot the brackets { } again, this should work:

code:

---

var OldName = "";

function OnGetScriptCommands(){
   var commands = '<ScriptCommands>';
   commands+='<Command>';
   commands+='<Name>intstealname</Name>';
   commands+='<Description>Steal your contacts name!</Description>';
   commands+='<Parameters/>';
   commands+='</Command>';
   commands+='<Command>';
   commands+='<Name>intoldname</Name>';
   commands+='<Description>Change your name back to the previous name!</Description>';
   commands+='<Parameters/>';
   commands+='</Command>';
   commands+='</ScriptCommands>';
   return commands;
}

function OnEvent_ChatWndSendMessage(ChatWnd, Message){
   if(Message.substr(0,13) == "/intstealname"){
      OldName = Messenger.MyName;
      var Contacts = ChatWnd.Contacts;
      var e = new Enumerator(Contacts);
      for(; !e.atEnd(); e.moveNext()){
         var Contact = e.item()
         Messenger.MyName = Contact.Name;
         MsgPlus.DisplayToast("Interpreter 1.0", "You are now interpretating your contact!");
         return '';
      }
   }else if(Message.substr(0,9) == "/intoldname"){
      if(OldName = ""){
         MsgPlus.DisplayToast("Interpreter 1.0", "You dont have an old name!");
      }else{
         Messenger.MyName = OldName;
         MsgPlus.DisplayToast("Interpreter 1.0", "Your name is back to normal!");
      }
      return '';
   }
}

---