var xpos = 50;
var ypos = 50;

function launch(url) {
  self.name = "opener";
}
function launchEnlargedImage(url) {
  self.name = "opener";
  remote = open(url, "remote", "width=725,height=550,top=" + ypos + ",left=" + xpos + ",screenY=" + ypos + ",screenX=" + xpos);
  remote.focus();
}
function launchEnlargedImageTall(url) {
  self.name = "opener";
  remote = open(url, "remote", "width=610,height=725,top=" + ypos + ",left=" + xpos + ",screenY=" + ypos + ",screenX=" + xpos);
  remote.focus();
}