diff --git a/django/contrib/admin/templatetags/admin_modify.py b/django/contrib/admin/templatetags/admin_modify.py
index 9f646214ce..2d34452f52 100644
--- a/django/contrib/admin/templatetags/admin_modify.py
+++ b/django/contrib/admin/templatetags/admin_modify.py
@@ -18,6 +18,19 @@ def class_name_to_underscored(name):
     return '_'.join([s.lower() for s in word_re.findall(name)[:-1]])
 
 def include_admin_script(script_path):
+    """
+    Returns an HTML script element for including a script from the admin
+    media url.
+
+    Example usage::
+
+        {% include_admin_script js/calendar.js %}
+
+    could return::
+
+        <script type="text/javascript" src="/media/admin/js/calendar.js">
+    """
+
     return '<script type="text/javascript" src="%s%s"></script>' % (settings.ADMIN_MEDIA_PREFIX, script_path)
 include_admin_script = register.simple_tag(include_admin_script)