/**
 * Take a TR element and add it to a DataTables table. Useful for maintaining
 * custom classes and other attributes.
 *  @name fnAddTr
 *  @anchor fnAddTr
 *  @author <a href="http://sprymedia.co.uk">Allan Jardine</a>
 *
 *  @example
 *    
 */

$.fn.dataTableExt.oApi.fnAddTr = function ( oSettings, nTr, bRedraw ) {
    if ( typeof bRedraw == 'undefined' )
    {
        bRedraw = true;
    }

    var nTds = nTr.getElementsByTagName('td');
    if ( nTds.length != oSettings.aoColumns.length )
    {
        alert( 'Warning: not adding new TR - columns and TD elements must match' );
        return;
    }

    var aData = [];
    var aInvisible = [];
    for ( var i=0 ; i<nTds.length ; i++ )
    {
        aData.push( nTds[i].innerHTML );
        if (!oSettings.aoColumns[i].bVisible)
        {
            aInvisible.push( i );
        }
    }

    /* Add the data and then replace DataTable's generated TR with ours */
    var iIndex = this.oApi._fnAddData( oSettings, aData );
    nTr._DT_RowIndex = iIndex;
    oSettings.aoData[ iIndex ].nTr = nTr;

    oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();

    // Hidding invisible columns
    for ( var i = (aInvisible.length - 1) ; i >= 0 ; i-- )
    {
		oSettings.aoData[iIndex]._anHidden[ i ] = nTds[aInvisible[i]];
		nTr.removeChild( nTds[aInvisible[i]] );
    }

	// Redraw
    if ( bRedraw )
    {
        this.oApi._fnReDraw( oSettings );
    }
};