function accountSummary(userid){
var xhr = new XMLHttpRequest();
xhr.open("GET", "https://www.bungie.net/platform/Destiny/Stats/Account/2/" + userid + "/", true);
xhr.setRequestHeader("X-API-Key", apiKey);

xhr.onreadystatechange = function(){
 if(this.readyState === 4 && this.status === 200){
  var json = JSON.parse(this.responseText);
  //document.writeln(this.responseText);
  //document.writeln(json.Response.data.characters.length);


  for (var index = 0; index < 3; index++){
		// This line gives you a temporary variable that contains the current character you're looking at, which makes subsequent code more readable
		var currentCharacter = json.Response.data.characters[index];
		// Do something that uses currentCharacter.baseCharacter.minutesPlayedTotal, or whatever other properties on currentCharacter that you want!
		document.writeln(currentCharacter.baseCharacter.minutesPlayedTotal);
	}
 }
}

xhr.send();
}