How to put NOFOLLOW on a block of links without editing all of the links ?

I have several pages of links and I want to make them all NOFOLLOW. Now I can manually add ref=nofollow but that will be too time consuming. Can I do it using programaically with javascript or php ?

Cheers

 

Where do these links come from? A database? Or are they directly coded into the page? Got a link to it? Examples?

 

Something like

$text = preg_replace('~<a (.+?)>~i', '<a $1 rel="nofollow">', $text);

Code (markup):

Works for me.

FFMG

 

Have you looked at CSS?

Check out the page by Matt Cutts on attribute rel nofollow.

 

I suppose there is some way to do that with help of DOM, but never met it