Take a look at this wiki article for sample code:
osm.wiki/index.php/OpenLayers_Simple_Example

hi
thank u very much
how can I dispaly my own map which is lay in my computer by using openstreet
view utilty

tanks again

ahmad habash

hi

in example code he use
[
maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
]

which mean he gave the coordinate in the code

I need to load map from localhost whithout coordinates

thanks alot

Ahmad Habash

I'm afraid I don't understand exactly what you're trying to do... What is the "openstreet view utility"? By your "own" map, do you mean your own rendering of the openstreetmap.org data, or a rendering of your own .osm-data?

The offline editors (JOSM, Merkaartor) and Kosmos allow viewing map data on your computer. If you're
on Windows and not interested in editing, Kosmos is probably the best bet: osm.wiki/index.php/Kosmos . Using these, you can download and display OSM
data from openstreetmap.org or just view your own .osm-file.

Cheers
Robert