sanitize-test.rb

#!ruby

require 'rubygems'
require 'sanitize'
require 'cgi'

doc = <<-EOS
<style>body{scrollbar-face-color:white;scrollbar-shadow-color:#C71585;scrollbar-highlight-color:#C71585;scrollbar-3dlight-color:white;scrollbar-darkshadow-color:white;scrollbar-track-color:white;scrollbar-arrow-color:#4169E1;}</style><P>
<P>
<STYLE type="text/css">A:hover{COLOR:white;background:url(http://blah.com/rainbow.GIF);}hr{background-image:url(http://blah.com/rainbow.GIF);width:100%;height:4;border:0;}input{background:url(http://blah.com/rainbow.GIF); border: 1pt solid mediumpurple; font-family: verdana; color: mediumpurple; font-size: 10px;letter-spacing:0pt} --> </STYLE>This is a test <P>
<P>
<p>
</p>
EOS

unescaped = CGI.unescapeHTML(doc)
puts Sanitize.clean(unescaped, :elements => %w!a b i strong img br p!)