anchor.diff:      updateNavigationButtons();
     }
   
  -  function navigationJumpToLastProtocol() {
  +  function navigationJumpToLastProtocol(ev) {
  +    ev.preventDefault();
       currentProtocol = nrOfProtocols - 1;
       previewProtocol(currentProtocol, true);
       updateNavigationButtons();
  
positive.code:     }
    }
  
    function importAllProtocols() {
      var nrOfImportedProtocols = 0;
      var datas = [];
  
      // Show spinner
      animateSpinner(importModal);
  
negative.code:     updateNavigationButtons();
    }
  
    function navigationJumpToNextProtocol(ev) {
      ev.preventDefault();
      if (currentProtocol < (nrOfProtocols - 1)) {
        currentProtocol++;
      }
  