Question about javascript response

I am trying to use cURL to request data from zillow.com - for example - 
http://www.zillow.com/homes/842-Swandyke-Court-Castle%20Rock-CO-80108/

The issue I am running into is that the final results in my local 
browser show the property data in both a bubble popup on the map and in 
the results down below in the list view.  However when using cURL to 
process this url - that information is not captured?  Is this due to the 
fact that javascript is running behind the scenes?  Any thoughts on how 
to get the full response from a page like this?

Thanks

Hans
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