bootstrap tab thing

snip.coffee

  $('#settings-tabs a[data-target]').click (e)->                                                                                       
    e.stopPropagation()                                                                                                                
    e.preventDefault()                                                                                                                 
    history.pushState(null, null, $(this).attr('href'))                                                                                
    $('#settings-tabs .active').removeClass('active')                                                                                  
    $(this).closest('li').addClass('active')                                                                                           
    active_pane = $($(this).data('target'))                                                                                            
    active_pane.closest('.tab-content').find('.tab-pane.active').removeClass('active')                                                 
    active_pane.addClass('active')                                                                                                     
                                                                                                                                       
  if tab = URI.parseQuery(URI().query())['tab']                                                                                        
    $("#settings-tabs a[data-target=\"##{tab}\"]").click()                                                                             
  else                                                                                                                                 
    $('#settings-tabs a[data-target]').first().click()