Bookmarklets for the ArcGIS Online viewer

GetMapDetails.js

if (typeof arcgisonline !== 'undefined' && arcgisonline.map.main.map !== null) {
  var m = arcgisonline.map.main.map,
      c = m.extent.getCenter();
  alert('Scale = 1 : ' + m.getScale() + 
        '\nZoom Level = ' + m.getZoom() + 
        '\nCenter = ' + c.x + ', ' + c.y + 
        '\nLat,Lon = ' + c.getLatitude() + ', ' + c.getLongitude());
} else {
  alert('Use this bookmark while viewing a map at ArcGIS.com!');
}

GetToken.js

var cookies = document.cookie.split('; '),
    authIndex = -1;
for (var i = 0; i < cookies.length; i++) {
  if (cookies[i].indexOf('esri_auth') === 0) {
    authIndex = i;
    break;
  }
}
if (authIndex === -1) {
  alert('Could not find esri_auth cookie!');
} else {
  authIndex = JSON.parse(window.decodeURIComponent(cookies[authIndex].split('=')[1]));
  if (authIndex.token !== undefined) {
    alert('Token found:\n' + authIndex.token);
    console.log(authIndex.token);
  } else {
    alert('No token found in esri_auth');
  }
}