Ext.grid.TableGrid = function(table, config) {
  config = config || {};
  Ext.apply(this, config);
  var cf = config.fields || [], ch = config.columns || [];
  table = Ext.get(table);

  var ct = table.insertSibling();

  var fields = [], cols = [];
  var headers = table.query("thead th");
  for (var i = 0, h; h = headers[i]; i++) {
    var text = h.innerHTML;
    var name = 'tcol-'+i;

    fields.push(Ext.applyIf(cf[i] || {}, {
      name: name,
      mapping: 'td:nth('+(i+1)+')/@innerHTML'
    }));

    cols.push(Ext.applyIf(ch[i] || {}, {
      'header': text,
      'dataIndex': name,
      'width': h.offsetWidth,
      'tooltip': h.title,
      'sortable': config.sortable
    }));
  }

  var ds  = new Ext.data.GroupingStore({
    reader: new Ext.data.XmlReader({
      record:'tbody tr',
    }, fields)
  });

  ds.loadData(table.dom);

  var cm = new Ext.grid.ColumnModel(cols);

  if (config.width || config.height) {
    ct.setSize(config.width || 'auto', config.height || 'auto');
  } else {
    ct.setWidth(table.getWidth());
  }

  if (config.remove !== false) {
    table.remove();
  }

  Ext.applyIf(this, {
    'ds': ds,
    'cm': cm,
    'sm': new Ext.grid.RowSelectionModel(),
    autoHeight: true,   
    autoWidth: false
  });
  Ext.grid.TableGrid.superclass.constructor.call(this, ct, {});
};

Ext.extend(Ext.grid.TableGrid, Ext.grid.GridPanel);