Hi, Yes, the JS SDK does support scores.
To show Scores:
ID.leaderboard();
That can be called inside a jquery click event or where ever needed.
To Submit a score:
ID.api('leaderboard/submit', 'POST', {score: 123 }, function(response){
console.log(response);
});
Keep in mind these should be called inside the id.net init event, to make sure ID is loaded first.
window.idAsyncInit = function() {
ID.Event.subscribe('id.init', function(){
put inside here...
EDIT: There is a new API for highscores. See the docs here http://dev.id.net/docs/javascript/game-api/#leaderboards-reference