# File lib/scrubyt/utils/xpathutils.rb, line 96
    def self.find_image(doc, example, index=0)
      if example =~ /\.(jpg|png|gif|jpeg)(\[\d+\])$/
        res = example.scan(/(.+)\[(\d+)\]$/)
        example = res[0][0]
        index = res[0][1].to_i
      end
      (doc/"//img[@src='#{example}']")[index]
    end