Request confirmation before deleting one item

templates/tag.html

@@ -7,7 +7,7 @@
 {% else %}
 <table>
 {% for tag in tags %}
-    <tr><td>{{ tag.id }}</td><td>{{ tag.name }}</td><td><a href="/tag/edit/{{ tag.id }}">Edit</a></td><td><a href="/tag/delete/{{ tag.id }}">Delete</a></td></tr>
+    <tr><td>{{ tag.id }}</td><td>{{ tag.name }}</td><td><a href="/tag/edit/{{ tag.id }}">Edit</a></td><td><a href="/tag/delete/{{ tag.id }}" onclick="return confirm('Do you really want to delete this item ?')">Delete</a></td></tr>
 {% endfor %}
 </table>
 {% endif %}