Is there a better method than setting a variable to this?

In my javascript objects i found myself writing this: this_object = this; It seems it's the only way to pass member variables to external functions... google.maps.event.addListener(this.marker, 'click', function() { this.info_window.setContent('Chicago marker'); this.info_window.open(this.map,this.marker); }); That doesn't work, I have to copy the object into a member variable and pass the new object (and replace all `this` with `this_object`) This feels ugly. Is there a "better" or "cleaner" way, or is this my only option?

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