My Rubbish Trivia Script (help)

[baseman101]

I'm in the process of developing a trivia system, but please excuse my bad code. I am very new to GS2.

PHP Code:

//#CLIENTSIDE
function onCreated() {
this.x += 0.5;
}
function showTriviaGUI() {
new GuiWindowCtrl("EventTrivia_Window1") {
    profile = GuiBlueWindowProfile;
    style = $pref::Video::defaultguistyle;
    clientrelative = true;
    clientextent = "384,164";

    canmaximize = false;
    canminimize = false;
    canmove = true;
    canclose = false;
    canresize = true;
    closequery = false;
    destroyonhide = false;
    text = "Trivia";
    x = 288;
    y = 173;

    new GuiTextCtrl("EventTrivia_Text1") {
      profile = GuiBlueTextProfile;
      height = 20;
      text = "Please fill out the  text boxes.";
      width = 167;
      x = 7;
    }
    new GuiTextEditCtrl("EventTrivia_TextEdit1") {
      profile = GuiBlueTextEditProfile;
      height = 20;
      width = 300;
      x = 84;
      y = 37;
    }
    new GuiTextCtrl("EventTrivia_Text2") {
      profile = GuiBlueTextProfile;
      height = 20;
      text = "Question";
      width = 53;
      y = 34;
    }
    new GuiTextCtrl("EventTrivia_Text3") {
      profile = GuiBlueTextProfile;
      height = 20;
      text = "Answer";
      width = 42;
      y = 74;
    }
    new GuiTextEditCtrl("EventTrivia_TextEdit2") {
      profile = GuiBlueTextEditProfile;
      height = 20;
      width = 300;
      x = 84;
      y = 77;
    }
    new GuiButtonCtrl("EventTrivia_Button1") {
      profile = GuiBlueButtonProfile;
      text = "Submit Quesiton";
      width = 385;
      y = 134;
    }
  }
}

function onPlayerChats() {
  if (player.chat=="/trivia" && player.guild=="Events Team") {
    showTriviaGUI();
  }
}
function EventTrivia_Button1.onAction() {
  temp.question = EventTrivia_TextEdit1.text;
  temp.answer = EventTrivia_TextEdit2.text;
  showtext(201, 29.5, 11, "Arial", "","Last Winner");
  setimgpart("head207.png",0,60,32,32);
  changeimgzoom 201,.7;
} 


Here are my questions as followed:

1. I have a variable for the answer (temp.answer) already. I don't know how to do the rest, for finding the player's answer.
2. I'm trying to find a way to make a string into an array, like you can in PHP with explode();. Is there a GS2 alternative?
3. How do I set an image part, but place the image part in a certain location on the level? setimgpart() will just set the NPC's picture to the image, which I don't want.

Thanks in advanced.