# How do they do it?

**URL:** <https://forum.kirupa.com/t/how-do-they-do-it/249608>\
**Category:** Uncategorized\
**Created:** [January 20, 2008, 9:23pm UTC](https://forum.kirupa.com/t/how-do-they-do-it/249608 "2008-01-20T21:23:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tanel96](https://avatars.discourse-cdn.com/v4/letter/t/5fc32e/32.png) [@tanel96](https://forum.kirupa.com/u/tanel96)\
**Post date:** [January 20, 2008, 9:23pm UTC](https://forum.kirupa.com/t/how-do-they-do-it/249608/1 "2008-01-20T21:23:06Z")

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Lately i’ve been noticing some interesting stuff going on… for example look at -\> [http://finance.yahoo.com/](http://finance.yahoo.com/) on the left side you’ll find “Market Summary”

1.) When you move your cursor over a stock name, it automatically expands, how’s it done ?

2.) When you click on Europe, US or Asia the entire content changes, …bummer. :block:

And i’m amazed what’s going on @ [http://edition.cnn.com/](http://edition.cnn.com/)

For example the Video navigation in the top right corner. How does it scroll like that without flash ?