$('#modal-import-json-protocol').modal('hide');
<% if remotipart_submitted? %>
    $('#protocolsio-preview-modal-target').html("<%= j "#{render(:partial => 'protocols/import_export/import_json_protocol_preview_modal')}" %>");
<% else %>
    $('#protocolsio-preview-modal-target').html("<%= j render(:partial => 'protocols/import_export/import_json_protocol_preview_modal') %>");
<% end %>

$('#modal-import-json-protocol-preview').modal('show');