title: Sort isotope between asc to desc
body: <p>im working on a project with isotope sorting and ordering a table between rows and also the use of history! This code i got from someone else over the internet and adapted to my needs!</p>
  
  <p>As i am more a designer than coder, im having trouble to sort order between asc to desc from a toggle click in the same sort button..</p>
  
  <p>Everything i try, mess with the code.. so for here is the working code i have:
  <a href="http://jsfiddle.net/uiliw/grmL5Los/" rel="nofollow">http://jsfiddle.net/uiliw/grmL5Los/</a></p>
  
  <p>what im trying to do is to toggle sortAscending between click to each sort button:</p>
  
  <pre><code>// Initialize Isotope
         $container.isotope({
            itemSelector: '.item',
            layoutMode: 'vertical',
            getSortData: {
                    codigo: '.codigo  parseFloat',
                    titulo: '.titulo',
                    versao: '.versao  parseFloat',
                    emissor: '.emissor  parseFloat',
                    situacao: '.situacao',
                },
          sortAscending: {
                  codigo: sortCodigo,
                  titulo: sortTitulo,
                  versao: sortVersao,
                  emissor: sortEmissor,
                  situacao: sortSituacao,
  
        }
  
          }); 
  </code></pre>
  
  <p>Can somebody help me to resolve this?!</p>