jquery.thing.html

<script src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
<script>
function endgame(thename, finalscore) {
  $.post( "http://hampus.connormcf.com/leaderboard/score.php?name=MYNAME&score=1", { name: thename, score: finalscore })
  .done(function( data ) {
    if(data == "true") {
      // success!
    } else {
      // FAILED! :O
    }
  });
}
</script>

otherthing.html

<script>
  var whatone = 1; // start from one here, not zero
$.get("http://hampus.connormcf.com/leaderboard/get.php?id="+whatone)
  .done(function( data ) {
    var scoredata = _(obj).toArray();
    console.log(scoredata['score'] + " - " + scoredata['name']);
  }
  .failed(function() {
    alert( "uh oh failed" );
  }
  );
</script>