anchor.diff:      {ok, URL} = HandlerModule:get_redirect_url(false),
       gui_jq:redirect(URL);
   
  -event(read_about_provider) ->
  -    gui_jq:replace(<<"main_panel">>, about_provider());
  -
  -event(back_to_homepage) ->
  -    gui_jq:replace(<<"main_panel">>, login_panel()).
  -
  +event({toggle_page, Type}) ->
  +    {Hide, Show} = case Type of
  +                       login -> {<<"about_provider_panel">>, <<"login_panel">>};
  +                       provider -> {<<"login_panel">>, <<"about_provider_panel">>}
  +                   end,
  +    gui_jq:hide(Hide),
  +    gui_jq:fade_in(Show, 150).
  
positive.code:             "support storage spaces for onedata users.">>},
              #h6{style = <<"margin-top: 30px;">>, body = <<"Installation steps">>},
              #list{numbered = true, style = <<"text-align: left;">>, body = [
                  #li{body = <<"Prepare a cluster of machines on which you would like to deploy the software. ",
                  "It can run on just 1 machine, although it is <strong>strongly recommended</strong> ",
                  "to use at least 4 machines for performance reasons.">>},
  
                  #li{body = <<"The software is intended for Red Hat based systems. It has been thoroughly ",
                  "tested on Scientific Linux.">>},
  
                  #li{body = <<"All hosts in the cluster must be visible to each other under unique, fully ",
                  "qualified hostnames.">>},
  
                  #li{body = [
                      <<"Download the RPM package from ">>,
                      #link{body = <<"here">>, url = <<?DOWNLOAD_LINK>>},
                      <<".">>
                  ]},
  
                  #li{body = <<"Install the package on every server in the cluster ",
                  "you would like to deploy the software on. ">>},
  
                  #li{body = <<"After completing the installation on every node, visit <strong>onepanel</strong>, ",
                  "which is an admin panel for the cluster. It is hosted on every node under ",
                  "<strong>&lthostname&gt:9443</strong>">>},
  
                  #li{body = <<"Follow the installation instructions that appear in the browser.">>},
  
                  #li{body = <<"When you are prompted to register at <strong>Global Registry</strong>, do so.">>},
  
                  #li{body = <<"Congratulations, you are now a <strong>onedata provider</strong>!">>},
  
                  #li{body = <<"When you log in, you will receive a token which you can use to get support ",
                  "for your storage space. Use it in onepanel (port 9443) ">>}
              ]},
              #link{class = <<"btn btn-success">>, postback = back_to_homepage,
                  style = <<"margin: 10px 10px 25px; text-align: center; width: 446px;">>,
                  body = [
                      <<"Back to home page">>,
                      <<"<i class=\"fui-arrow-right pull-right\"></i>">>
                  ]}
          ]},
  
negative.code:                                   _ -> <<"">>
                                end,
  
              #panel{id = <<"login_panel">>, style = <<"position: relative;">>, body = [
                  #panel{id = <<"error_message">>, style = ErrorPanelStyle, class = <<"dialog dialog-danger">>, body = #p{
                      body = <<"Session error or session expired. Please log in again.">>}},
                  #panel{class = <<"alert alert-success login-page">>, body = [
  