code: function _fnFindDtCell( nTarget )
  	{
  		for ( var i=0, iLen=_oDatatable.aiDisplay.length ; i<iLen ; i++ )
  		{
  			var nTr = _oDatatable.aoData[ _oDatatable.aiDisplay[i] ].nTr;
  			var nTds = nTr.getElementsByTagName('td');
  			for ( var j=0, jLen=nTds.length ; j<jLen ; j++ )
  			{
  				if ( nTds[j] == nTarget )
  				{
  					return [ j, i ];
  				}
  			}
  		}
  		return null;
  	}
docs: /*
  Function: _fnFindDtCell
  Purpose:  Get the coords. of a cell from the DataTables internal information
  Returns:  array[2] int: [x, y] coords. or null if not found
  Inputs:   node:nTarget - the node of interest