[OpenLayers-Users] tile server for custom tiles always needed?

[Jens Herrmann]

Hello,
I'm a beginner and I want to build a map mit openlayers based on my own 
custom tiles I rendered with Mapnik. Do I have to set up a tile server 
for this or is it possible to just give openlayers the path to the tile 
directory?
On http://wiki.openstreetmap.org/index.php/OpenLayers_Simple_Example is 
a short description which says that this can be done with a single line 
(and some minor modifications):

var newLayer = new OpenLayers.Layer.OSM("New Layer", "path_to_tiles/", 
{numZoomLevels: 19});

Unfortunately this doesnt work here and I could not find any other 
reference. If this is possible, what would I have to do?

Regards
Jens