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 ];
	}
Get the widest node
 @param {object} settings dataTables settings object
 @param {int} colIdx column of interest
 @returns {node} widest table node
 @memberof DataTable#oApi