javascript get name from steamid
var xhr = new XMLHttpRequest();
xhr.open('POST', 'http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key={API_KEY}&steamids=$steamid64');
xhr.onload = function () {
if (xhr.status === 200) {
var json = JSON.parse(xhr.responseText);
document.getElementById('target').innerHTML = json['response']['players'][0]['personaname'];
} else {
alert('Request failed. Returned status of ' + xhr.status);
}
};
xhr.send();