  $('a[data-toggle="tab"]').click(function(){
      document.cookie="tabstyle=" + this.name + "; path=/";
  });
  
  // Store tab preference in cookies & display appropriate tab on load.
  var selectedTab = null;
  var selectedTabName = getCookie('tabstyle');
  
  if (selectedTabName) {
      selectedTabName = selectedTabName.replace(/[^a-z-]/g, '');
  }
  
 
</s> remove $('a[data-toggle="tab"]').click(function(){
    document.cookie="tabstyle=" + this.name + "; path=/";
});
 </s> add     $('a[data-toggle="tab"]').click(function(){
        document.cookie="tabstyle=" + this.name + "; path=/";
    }); </s> remove if (selectedTabName) {
    selectedTabName = selectedTabName.replace(/[^a-z-]/g, '');
}
 </s> add     if (selectedTabName) {
        selectedTabName = selectedTabName.replace(/[^a-z-]/g, '');
    } </s> remove if (selectedTabName) {
    selectedTab = $('.form-switcher a[name=' + selectedTabName + ']');
}
 </s> add     if (selectedTabName) {
        selectedTab = $('.form-switcher a[name=' + selectedTabName + ']');
    } </s> remove // Deal with rounded tab styling after tab clicks.
$('a[data-toggle="tab"]:first').on('shown', function (e) {
    $(e.target).parents('.tabbable').addClass('first-tab-active');
});
$('a[data-toggle="tab"]:not(:first)').on('shown', function (e) {
    $(e.target).parents('.tabbable').removeClass('first-tab-active');
});
 </s> add     // Deal with rounded tab styling after tab clicks.
    $('a[data-toggle="tab"]:first').on('shown', function (e) {
        $(e.target).parents('.tabbable').addClass('first-tab-active');
    });
    $('a[data-toggle="tab"]:not(:first)').on('shown', function (e) {
        $(e.target).parents('.tabbable').removeClass('first-tab-active');
    }); </s> remove if (selectedTab && selectedTab.length > 0) {
    // Display whichever tab is selected.
    selectedTab.tab('show');
} else {
    // If no tab selected, display rightmost tab.
    $('.form-switcher a:first').tab('show');
}
 </s> add     if (selectedTab && selectedTab.length > 0) {
        // Display whichever tab is selected.
        selectedTab.tab('show');
    } else {
        // If no tab selected, display rightmost tab.
        $('.form-switcher a:first').tab('show');
    }
    // Store tab preference in cookies & display appropriate tab on load.
    var selectedTab = null;
    var selectedTabName = getCookie('tabstyle');
  $('a[data-toggle="tab"]').click(function(){
      document.cookie="tabstyle=" + this.name + "; path=/";
  });
  
    // Store tab preference in cookies & display appropriate tab on load.
    var selectedTab = null;
    var selectedTabName = getCookie('tabstyle');
    // Store tab preference in cookies & display appropriate tab on load.
    var selectedTab = null;
    var selectedTabName = getCookie('tabstyle');
    // Store tab preference in cookies & display appropriate tab on load.
    var selectedTab = null;
    var selectedTabName = getCookie('tabstyle');
  
  if (selectedTabName) {
      selectedTabName = selectedTabName.replace(/[^a-z-]/g, '');
  }
  
keep keep keep keep replace replace replace keep keep keep keep keep
 Run JavaScript only when DOM is ready. 
rest_framework/static/rest_framework/js/default.js