document.write('<div class="p_l f_l"><font color="#FF0000">Previous:</font><a id="preLink" href="/product/P308.html">Rber-8511</a></div><div class="p_r f_r"><font color="#FF0000">Next:</font><a id="nextLink" href="/product/P306.html">Rber-8811</a></div>');