Question: I'm designing a dynamic web page that loads contents by AJAX, like the wall of facebook, first to the top last to the bottom. However, i don't want to change the scrolled content. For example, when new contents are loaded page is driven down, but i want a script to fix scrolled content on screen. How can I do this? Help me please. 

**Update**

Okey, I've found the key function it is scrollBy(x,y); function of the window object. however now i want to use it with jquery animation how can i animate this function?

Answer: 
Maybe the answer to "when would \* fail to match" is "never".
`assert_equal nil, "abbcccddddeeeee"[/zc*/]`

z doesn't match-- so c\* can't match. Tinkered with options until `assert_equal nil` passed.