text: from django import template
  from django.contrib.staticfiles.templatetags.staticfiles import static
  try:
      from django.core.urlresolvers import reverse
  except ImportError:
      from django.urls import reverse
  from django.utils import safestring
  
  
  register = template.Library()
  
  
  def get_script_tag(source):
      """ Get HTML script tag with the specified source.
      """
      return '<script type="text/javascript" src="{}"></script>'.format(source)
  
  
  def get_script_tags(*sources):
      """ Get one line of HTML script tags with the specified sources.
      """
      return ''.join([get_script_tag(source) for source in sources])
  
  
  @register.simple_tag()
  def adjax_scripts():
      """ Return HTML with scripts.
      """
      from adjax import views
      return safestring.mark_safe(get_script_tags(static('adjax/base.js'),
                                                  reverse('adjax:interface')))
  