extracting prices from a website

Data extraction
There is a small iFrame showing prices in real-time. (i.e.: FTSE 100 Daily) on the site Igindex.com. Lightstreamer - http://www.igindex.co.uk/pricestream/outside/getMarketList?webSiteId=igi&businessArea=F&locale=en_GB&firstTime=true&skin=igindex

The prices must be scrapped and printed it to the console. That's it!
====================================================

I have to check if I can intercept AJAX push data steam!
If it can be done, I will do it in javascript and perl!
and create simple TXT file with extracted data
I will let you know, when I conclude my experiments!