Help a JS virgin find that sweet spot

I'm practicing JS by trying to make a rock, paper, scissor game. 

I have failed.

Can /prog/ help a nigga out?

http://pastebin.com/2Sq06a0c

Everything is appreciated, just keep in mind I'm new as fuck to programming.


var choices = {"rock" : 1, "paper" : 4, "scissors": 3};
var choicesBackward = {1 : "rock", 4 : "paper", 3 : "scissors"};
var choicesArray = ["rock", "paper", "scissors"];

function player(name, playFunction) {
  this.choice = 0;
  this.name = name;
  this.winCount = 0;
  this.play = playFunction;
};

function getWinner(player1, player2) {
  var result;

  result = player1.choice - player2.choice;
  if(player1.choice == player2.choice)
    return "tie";
  if(result == -2 || result == 3 || result == -1)
  {
    player1.winCount += 1;
    return player1;
  }
  else
  {
    player2.winCount += 1;
    return player2;
  }
}

function playAndGetResults(player1, player2) {
  var result;

  player1.choice = player1.play();
  player2.choice = player2.play();

  console.log(player1.name + " chose " + choicesBackward[player1.choice]);
  console.log(player2.name + " chose " + choicesBackward[player2.choice]);
 
  result = getWinner(player1, player2);

  if(result == "tie")
    console.log("tie");
  else
    console.log("player " + result.name + " won with " + choicesBackward[result.choice]);
}

function botSelectChoice() {
  var choicesArrayIndex;

  choicesArrayIndex = Math.floor(Math.random() * 10 % 3);
  return choices[choicesArray[choicesArrayIndex]];
}

function main() {
  var player1 = new player("Alice", botSelectChoice);
  var player2 = new player("Bob", botSelectChoice);
 
  playAndGetResults(player1, player2);
}

paste it into your interpreter, and just call main() over and over