This page describes how to include a OpenStreetMap with openlayers from http://www.openlayers.org
who already know this can easily write it here down
Write a marco called "OpenLayers" for example an save it in plugin/macro/OpenLayers.py with this content
import string, sys def execute(macro, args): return macro.request.formatter.rawHTML(""" <iframe width="600" height="450" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://www.openstreetmap.org/export/embed.html?bbox=11.0729,49.46014,11.10449,49.47475&layer=mapnik&marker=49.46789,11.08500" style="border: 1px solid black"> </iframe> <br/> <small> <a href="http://www.openstreetmap.org/?lat=49.467445&lon=11.088695&zoom=14&layers=B000FTFTT&mlat=49.46789&mlon=11.08500">Größere Karte anzeigen</a> </small>\n """)