# File lib/action_view/helpers/url_helper.rb, line 177
      def mail_to(email_address, name = nil, html_options = {})
        html_options = html_options.stringify_keys
        encode = html_options.delete("encode")
        cc, bcc, subject, body = html_options.delete("cc"), html_options.delete("bcc"), html_options.delete("subject"), html_options.delete("body")

        string = ''
        extras = ''
        extras << "cc=#{CGI.escape(cc).gsub("+", "%20")}&" unless cc.nil?
        extras << "bcc=#{CGI.escape(bcc).gsub("+", "%20")}&" unless bcc.nil?
        extras << "body=#{CGI.escape(body).gsub("+", "%20")}&" unless body.nil?
        extras << "subject=#{CGI.escape(subject).gsub("+", "%20")}&" unless subject.nil?
        extras = "?" << extras.gsub!(/&?$/,"") unless extras.empty?

        email_address_obfuscated = email_address.dup
        email_address_obfuscated.gsub!(/@/, html_options.delete("replace_at")) if html_options.has_key?("replace_at")
        email_address_obfuscated.gsub!(/\./, html_options.delete("replace_dot")) if html_options.has_key?("replace_dot")

        if encode == 'javascript'
          tmp = "document.write('#{content_tag("a", name || email_address, html_options.merge({ "href" => "mailto:"+email_address.to_s+extras }))}');"
          for i in 0...tmp.length
            string << sprintf("%%%x",tmp[i])
          end
          "<script type=\"text/javascript\" language=\"javascript\">eval(unescape('#{string}'))</script>"
        elsif encode == 'hex'
          for i in 0...email_address.length
            if email_address[i,1] =~ /\w/
              string << sprintf("%%%x",email_address[i])
            else
              string << email_address[i,1]
            end
          end
          content_tag "a", name || email_address_obfuscated, html_options.merge({ "href" => "mailto:#{string}#{extras}" })
        else
          content_tag "a", name || email_address_obfuscated, html_options.merge({ "href" => "mailto:#{email_address}#{extras}" })
        end
      end