Keyboard navigable DataTable rows with selection

gistfile1.js

/*
This code should allow users to tab to the first row in the table, which will "select" it by
adding a class to it and storing a reference to the row node.  Alternately, users can click
on a row to select it.  Selection can be shifted to the next or previous row with the up and down arrow keys. The 'enter' key will fire a 'rowAction' custom event.
*/
table.getRow(0).setAttribute('tabindex', table.get('tabIndex') || 0);

table.delegate('keydown', function (e) {
    var selected      = this._selectedRow,
        tbody         = this._tbodyNode,
        selectedClass = this.getClassName('selected','row'),
        moveSelection;

    switch (e.keyCode) {
        // up arrow
        case 38: this.selectRow((selected && selected.previous()) || tbody.get('lastChild'));
                 break;

        // down arrow
        case 40: this.selectRow((selected && selected.next()) || tbody.get('firstChild'));
                 break;

        // enter key
        case 13: this.fire('rowAction', {
                     row: e.currentTarget,
                     record: this.getRecord(e.currentTarget.getData('yui3-record'))
                 });
                 break;
    }
}, '.yui3-datatable-data > tr', table);

table.delegate(['click', 'focus'], function (e) {
    this.selectRow(e.currentTarget);
}, '.yui3-datatable-data > tr', table);

table.selectRow = function (row, nofocus) {
    var selected = this._selectedRow;

    selected && selected.removeClass(rowClass)
        .removeAttribute('tabindex');

    if (row) {
        row = row.ancestor('.yui3-datatable-data > tr', true);
    }

    if (row) {
        this._selectedRow = selected = row;

        if (selected) {
            selected.addClass(rowClass).setAttribute('tabindex', this.get('tabIndex') || 0);

            nofocus || selected.focus();
        }
    }

    return this;
};

table.getSelectedRow = function () {
    return this._selectedRow;
};

Is this still valid? I am getting errors like table.getrow is not valid and table.delegate is not valid