 and colours
                    <span id="linecustom">10,8,9,3,5,8,5,7</span>
                  </p>

                  <p>
                    Tristate charts
                    <span class="sparktristate">1,1,0,1,-1,-1,1,-1,0,0,1,1</span><br>
                    (think games won, lost or drawn)
                  </p>

                  <p>
                    Tristate chart using a colour map:
                    <span class="sparktristatecols">1,2,0,2,-1,-2,1,-2,0,0,1,1</span>
                  </p>

 