import RSVP from 'rsvp';

let nextId = 1;

export function loadScript(url, id) {
  if ( !id )
  {
    id="loadScript-" + nextId;
    nextId++;
  }

  return new RSVP.Promise(function(resolve,reject) {
    let script     = document.createElement('script');
    script.onload  = resolve;
    script.onerror = reject;
    script.src     = url;
    script.id      = id;
    document.getElementsByTagName('BODY')[0].appendChild(script);
  });
}