From: Phlip <phlip2005@...>
Date: 2008-08-13T09:47:29+09:00
Subject: Re: Hpricot and xpath

> tag1.rb:6: undefined method `xpath' for nil:NilClass (NoMethodError)

Do you see the nil in that line? Where is the nil coming from? Is the method 
before the .xpath, on line 6, possibly returning a nil and not an Elem?

After pondering that, switch '#header' to '.header'!