Edit link toggler for spacehey.com personal profile pages

// Edit link toggler for spacehey.com personal profile pages
//   ~ Vina
jQuery.extend(
    jQuery.expr[':'], {
        regex: function(a, i, m, r) {
            var r = new RegExp(m[3], 'i');
            return r.test(jQuery(a).text());
        }
    }
);
$(document).ready(function() {
  control = $('<span class="toggler"></span>');
  control.css({position: 'absolute', top: 0, left: 0});
  control.html('&#128065;')
  var visible = true;
  control.click(function() {
    $('.profile-info').toggle();
    $('a:regex("^(edit|edit photo)$")').each(function(i, o) {
      $(o).toggle();
      // manage the brackets around the edit links:
      if (visible) {
        o.previousSibling.data = o.previousSibling.data.slice(0, -1);
        o.nextSibling.data = o.nextSibling.data.slice(1);
        control.html('&mdash;')
      }
      else {
        o.previousSibling.data += "[";
        o.nextSibling.data = "]" + o.nextSibling.data;
        control.html('&#128065;')
      }
    })

    visible = !visible;
  })
  $(document.body).append(control)
  control.click();
});