SafeClone to for jQuery UI so that it plays nice with Ember.js

SafeClone.js

$.fn.extend({
  safeClone: function() {
    var clone;
    clone = $(this).clone();
    clone.find('script[id^=metamorph]').remove();
    clone.find('*').each(function() {
      var $this;
      $this = $(this);
      return $.each($this[0].attributes, function(index, attr) {
        if (attr.name.indexOf('data-bindattr') === -1) {
          return;
        }
        return $this.removeAttr(attr.name);
      });
    });
    if (clone.attr('id') && clone.attr('id').indexOf('ember') !== -1) {
      clone.removeAttr('id');
    }
    clone.find('[id^=ember]').removeAttr('id');
    return clone;
  }