Miscellany

    $('<input type="checkbox" class="form-checkbox" />').prependTo('th.select-all').toggle(function() {      $('input:checkbox', this.form).each(function() {        this.checked = true;        $(this).parents('tr').addClass('selected');      });      return true;    }, function() {      $('input:checkbox', this.form).each(function() {        this.checked = false;        $(this).parents('tr').removeClass('selected');      });    });