gistfile1.js

   <script>
    
      function runSuites() {
          // uncomment when we move away from the grammar
        //JSpec.preprocess = function(code) { return code; }
        var matches = /.*\?test=(.*)/.exec(document.URL);
        if (matches)
        {
            JSpec
                    .exec(matches[1])
                    .run({ failuresOnly: false, fixturePath: 'fixtures' })
                    .report();
        } else {
            // run the whole suite               
        }
      }
    </script>