tschaub 71276b5323 Fixing the extend method to work on IE. ...

In IE, events don't have a `hasOwnProperty` method.  Instead of trusting that the source objects have this method, we call the same on the Object prototype.  If we want to be safer about the `hasOwnProperty` calling done in e3cc96dbfb, we could create an `OpenLayers.Object.has` method that also used the Object prototype.

2012-03-02 16:54:59 -07:00

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