="hl opt">.</span><span class="hl kwd">conditional</span><span class="hl opt">(</span>node<span class="hl opt">,</span> condition<span class="hl kwc">[1]</span><span class="hl opt">,</span> output<span class="hl opt">);</span>
      <span class="hl opt">}</span>
    <span class="hl opt">};</span>

    Converter<span class="hl opt">.</span><span class="hl kwa">prototype</span><span class="hl opt">.</span>conditional <span class="hl opt">=</span> <span class="hl kwa">function</span><span class="hl opt">(</spa