Safari, Headings on Google

[E.J. Zufelt]

Good evening,

When using JAWS with IE7 I can navigate google by heading and each  
search result is a heading level 3.

With Safari it seems like there is a heading 2 for "Search Results"  
but that none of the search results themselves are a heading.  Any  
thoughts?

Plus, is there a keystroke to navigate to a certain heading, I.E.  
Heading level 4?

Thanks,
Everett