diff --git a/doc/MANUAL.md b/doc/MANUAL.md
index 766b1a5..83af10c 100644
--- a/doc/MANUAL.md
+++ b/doc/MANUAL.md
@@ -168,6 +168,10 @@ Structurally, they are made up of the following elements:
- **`allowed_users`**: A list of users that are allowed to view and submit
this form. **Optional**, **List of strings**.
+ - **`hidden`**: If 'true', the input field is hidden. This is useful for
+ pre-filled forms which takes it values from the GET request.
+ **Optional**, **boolean**.
+
- **`users`**: A dictionary of users where the key is the username and the
value is the plaintext password. This field is not required. **Dictionary**.
diff --git a/src/scriptform.py b/src/scriptform.py
index 855a87a..49e0fa6 100755
--- a/src/scriptform.py
+++ b/src/scriptform.py
@@ -66,6 +66,7 @@ html_header = u'''
div.form p.form-description {{ font-size: 0.90em;
margin: 40px 25px 65px 25px; }}
div.form li {{ font-size: 0.90em; list-style: none; }}
+ div.form li.hidden {{ display: none; }}
div.form p.form-field-title {{ margin-bottom: 0px; }}
div.form p.form-field-input {{ margin-top: 0px; }}
select,
@@ -743,12 +744,17 @@ class ScriptFormWebApp(WebAppHandler):
field['type'])
)
+ classes = ''
+ if 'hidden' in field and field['hidden']:
+ classes += 'hidden '
+
return (u'''
-
+
{title}
{input} {errors}
- '''.format(title=field['title'],
+ '''.format(classes=classes,
+ title=field['title'],
input=input,
errors=u', '.join(errors)))