hpricot：Hpricot::Elements#html, #inner_html, #innerHTML

everyday Ruby 
>> require "hpricot"
=> true
>> doc = Hpricot('<p>foo1</p><p>foo2</p>')
=> #<Hpricot::Doc {elem <p> "foo1" </p>} {elem <p> "foo2" </p>}>
>> doc.html
=> "<p>foo1</p><p>foo2</p>"
>> doc.inner_html
=> "<p>foo1</p><p>foo2</p>"
>> doc.innerHTML
=> "<p>foo1</p><p>foo2</p>"
>> doc.search("p").html
=> "foo1foo2"
>> doc.search("p").html("foo")
=> "foo"
>> doc
=> #<Hpricot::Doc {elem <p> "foo" </p>} {elem <p> "foo" </p>}>