Try <pre>map.zoomToExtent</pre>

<a href="http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.zoomToExtent" target="_top" rel="nofollow" link="external">
http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.zoomToExtent</a><div class="signature">Bryan R. McBride, GISP
<br><a href="http://www.bryanmcbride.com?by-user=t" target="_top" rel="nofollow" link="external">bryanmcbride.com</a></div>
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