anchor.diff:      // Bind on "Import" buttons
       $("[data-action='import-current']")
       .off("click")
  -    .on("click", function() { importCurrentProtocol(); });
  +    .on("click", function(ev) { importCurrentProtocol(ev); });
       $("[data-action='import-all']")
       .off("click")
  -    .on("click", function() { importAllProtocols(); });
  +    .on("click", function(ev) { importAllProtocols(ev); });
   
       // Bind on navigation buttons
       $("[data-action='jump-to-first-protocol']")
       .off("click")
  -    .on("click", function() { navigationJumpToFirstProtocol(); });
  +    .on("click", function(ev) { navigationJumpToFirstProtocol(ev); });
       $("[data-action='jump-to-previous-protocol']")
       .off("click")
  -    .on("click", function() { navigationJumpToPreviousProtocol(); });
  +    .on("click", function(ev) { navigationJumpToPreviousProtocol(ev); });
       $("[data-action='jump-to-next-protocol']")
       .off("click")
  -    .on("click", function() { navigationJumpToNextProtocol(); });
  +    .on("click", function(ev) { navigationJumpToNextProtocol(ev); });
       $("[data-action='jump-to-last-protocol']")
       .off("click")
  -    .on("click", function() { navigationJumpToLastProtocol(); });
  +    .on("click", function(ev) { navigationJumpToLastProtocol(ev); });
       updateNavigationButtons();
     }
   
     /* Actual import */
   
  -  function importCurrentProtocol() {
  -
  +  function importCurrentProtocol(ev) {
       var check_linked = $("[data-role='protocol-status-bar']")
                           .text();
       var confirm_message = "";
  +    ev.preventDefault();
       if( check_linked.trim() !== '(unlinked)' ){
         confirm_message = I18n.t("protocols.import_export.import_modal.import_to_linked_task_file");
       } else {
  
positive.code:     updateNavigationButtons();
    }
  
    function navigationJumpToLastProtocol() {
      currentProtocol = nrOfProtocols - 1;
      previewProtocol(currentProtocol, true);
      updateNavigationButtons();
  
negative.code:     }
    }
  
    function importAllProtocols(ev) {
      var nrOfImportedProtocols = 0;
      var datas = [];
  
      ev.preventDefault();
  
      // Show spinner
      animateSpinner(importModal);
  