Merge pull request #98 from minrk/finish-71

Make 'element' available for JS output to add to document

closes #71

nbconvert/exporters/templateexporter.py

@@ -9,6 +9,7 @@
 
 # Stdlib imports
 import os
+import uuid
 
 # other libs/dependencies are imported at runtime
 # to move ImportErrors to runtime when the requirement is actually needed
@@ -293,6 +294,8 @@ def _create_environment(self):
             extensions=JINJA_EXTENSIONS
             )
 
+        environment.globals['uuid4'] = uuid.uuid4
+
         # Add default filters to the Jinja2 environment
         for key, value in self.default_filters():
             self._register_filter(environment, key, value)

nbconvert/templates/html/basic.tpl

@@ -193,8 +193,11 @@ height={{output.metadata['image/jpeg']['height']}}
 {%- endblock -%}
 
 {%- block data_javascript scoped %}
+{% set div_id = uuid4() %}
+<div id="{{ div_id }}"></div>
 <div class="output_subarea output_javascript {{extra_class}}">
 <script type="text/javascript">
+var element = $('#{{ div_id }}');
 {{ output.data['application/javascript'] }}
 </script>
 </div>