Custom Chat System

[Gunderak]

Come on guys, you know the good old online rpg games!
anyway basically iv got a script where when the player chats it shows all players chat in a window. the only problem is it only will show one players chat then when another player chats it disappears.
how would i make this so when you chat it shows it and when someone else chats your chat gets pushed up and theirs goes where yours was?

PHP Code:

//#CLIENTSIDE
function onPlayerChats(){
server.chat = player.chat;
}
function onCreated() {
ChatBar.width = 600;
ChatBar.alpha = 0.6;
ChatBar.useownprofile = true;
ChatBar.profile.bitmap = "Test_textedit.png";
ChatBar.height = 25;
ChatBar.y = 783;
ChatBar.x = 0;
 new GuiWindowCtrl("MyGUI_Window1") {
    profile = GuiBlueWindowProfile;
    clientrelative = true;
    clientextent = "588,100";

    canclose = false;
    canmaximize = false;
    canminimize = false;
    canmove = false;
    canresize = false;
    closequery = false;
    destroyonhide = false;
    alpha = 0.6;
    x = 0;
    y = 653;
  }
    setTimer(0.05);
}
function onTimeout() {
  for (temp.p: players) {
    temp.player_chat = temp.p.chat.trim();
    if (temp.p.chat != "") {
      new GuiTextCtrl("PlayersChat") {
      profile = GuiBlueTextProfile;
      height = 20;
      width = 600;
      text = temp.p.nick@": "@server.chat;
      width = 200;
      x = 7;
      y = 757;
    }
    }
  }
  setTimer(0.05);
} 


Just wondering if its even possible?