/*
 * Function: fnLengthChange
 * Purpose:  Change the number of records on display
 * Returns:  array:
 * Inputs:   object:oSettings - DataTables settings object
 *           int:iDisplay - New display length
 */
$.fn.dataTableExt.oApi.fnLengthChange = function ( oSettings, iDisplay )
{
	oSettings._iDisplayLength = iDisplay;
	oSettings.oApi._fnCalculateEnd( oSettings );
	
	/* If we have space to show extra rows (backing up from the end point - then do so */
	if ( oSettings._iDisplayEnd == oSettings.aiDisplay.length )
	{
		oSettings._iDisplayStart = oSettings._iDisplayEnd - oSettings._iDisplayLength;
		if ( oSettings._iDisplayStart < 0 )
		{
			oSettings._iDisplayStart = 0;
		}
	}
	
	if ( oSettings._iDisplayLength == -1 )
	{
		oSettings._iDisplayStart = 0;
	}
	
	oSettings.oApi._fnDraw( oSettings );
	
	$('select', oSettings.oFeatures.l).val( iDisplay );
}