code: function _fnGetWidestNode( settings, colIdx )
  	{
  		var idx = _fnGetMaxLenString( settings, colIdx );
  		if ( idx < 0 ) {
  			return null;
  		}
  	
  		var data = settings.aoData[ idx ];
  		return ! data.nTr ? // Might not have been created when deferred rendering
  			$('<td/>').html( _fnGetCellData( settings, idx, colIdx, 'display' ) )[0] :
  			data.anCells[ colIdx ];
  	}
docs: Get the widest node
  @param {object} settings dataTables settings object
  @param {int} colIdx column of interest
  @returns {node} widest table node
  @memberof DataTable#oApi