function attach ()

function loadWindow(sender)
{
  var tip = new ui.Tooltip();

  var t = document.createElement("div");
  var img = document.createElement("img");
  img.width = img.height = "40";
  img.src = "icon_fish.png";
  img.style.verticalAlign = "middle";
  t.appendChild(img);
  var span = document.createElement("span");
  span.innerText = "This user is not currently online";
  t.appendChild(span);
  tip.template = t.outerHTML;

  sender.element.querySelector("#tabs").appendChild(tip.draw());
  tip.attach();
}