diff --git a/README.md b/README.md
index 0e63e33..7092f19 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,11 @@ to make it easy to experiment with GUIs during development.
 
 Supports LÖVE versions 0.9.1 and higher.
 
+## Documentation
+
+Building the documentation relies on a specific version of LDoc. Run
+`sudo luarocks install ldoc 1.4.4-1` to install the necessary version.
+
 
 
 **Note**: Currently rewriting and redesigning Pop.Box. The following info is out of date until I finish:
diff --git a/docs/classes/element.html b/docs/classes/element.html
index 05042b3..8040c2a 100644
--- a/docs/classes/element.html
+++ b/docs/classes/element.html
@@ -32,7 +32,6 @@
 
 <h2>Contents</h2>
 <ul>
-<li><a href="#Issues">Issues</a></li>
 <li><a href="#Methods">Methods</a></li>
 </ul>
 
@@ -65,13 +64,6 @@
     </ul>
 
 
-<h2><a href="#Issues">Issues</a></h2>
-<table class="function_list">
-	<tr>
-	<td class="name" nowrap><a href="#element.new-todo5">element.new-todo5</a></td>
-	<td class="summary">if data, do stuff about it</td>
-	</tr>
-</table>
 <h2><a href="#Methods">Methods</a></h2>
 <table class="function_list">
 	<tr>
@@ -84,24 +76,6 @@
 <br/>
 
 
-    <h2 class="section-header "><a name="Issues"></a>Issues</h2>
-
-    <dl class="function">
-    <dt>
-    <a name = "element.new-todo5"></a>
-    <strong>element.new-todo5</strong>
-    </dt>
-    <dd>
-    if data, do stuff about it
-
-
-
-
-
-
-
-</dd>
-</dl>
     <h2 class="section-header "><a name="Methods"></a>Methods</h2>
 
     <dl class="function">
@@ -144,7 +118,7 @@
 </div> <!-- id="main" -->
 <div id="about">
 <i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.3</a></i>
-<i style="float:right;">Last updated 2016-09-07 20:48:49 </i>
+<i style="float:right;">Last updated 2016-09-07 20:53:10 </i>
 </div> <!-- id="about" -->
 </div> <!-- id="container" -->
 </body>
diff --git a/docs/index.html b/docs/index.html
index 3fb7c10..cdfa66b 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -79,7 +79,7 @@
 </div> <!-- id="main" -->
 <div id="about">
 <i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.3</a></i>
-<i style="float:right;">Last updated 2016-09-07 20:48:49 </i>
+<i style="float:right;">Last updated 2016-09-07 20:53:10 </i>
 </div> <!-- id="about" -->
 </div> <!-- id="container" -->
 </body>
diff --git a/docs/modules/Element.html b/docs/modules/Element.html
index af0aea8..c5be4fa 100644
--- a/docs/modules/Element.html
+++ b/docs/modules/Element.html
@@ -486,7 +486,7 @@
 </div> <!-- id="main" -->
 <div id="about">
 <i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.3</a></i>
-<i style="float:right;">Last updated 2016-09-07 20:48:49 </i>
+<i style="float:right;">Last updated 2016-09-07 20:53:10 </i>
 </div> <!-- id="about" -->
 </div> <!-- id="container" -->
 </body>
diff --git a/docs/modules/main.html b/docs/modules/main.html
index 02292c9..26923de 100644
--- a/docs/modules/main.html
+++ b/docs/modules/main.html
@@ -71,7 +71,7 @@
 </div> <!-- id="main" -->
 <div id="about">
 <i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.3</a></i>
-<i style="float:right;">Last updated 2016-09-07 20:48:49 </i>
+<i style="float:right;">Last updated 2016-09-07 20:53:10 </i>
 </div> <!-- id="about" -->
 </div> <!-- id="container" -->
 </body>
diff --git a/docs/modules/pop.html b/docs/modules/pop.html
index 3c744f2..fb74b47 100644
--- a/docs/modules/pop.html
+++ b/docs/modules/pop.html
@@ -665,7 +665,7 @@ table.insert element.parent, element.parent\removeChild(element),
 </div> <!-- id="main" -->
 <div id="about">
 <i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.3</a></i>
-<i style="float:right;">Last updated 2016-09-07 20:48:49 </i>
+<i style="float:right;">Last updated 2016-09-07 20:53:10 </i>
 </div> <!-- id="about" -->
 </div> <!-- id="container" -->
 </body>
diff --git a/docs/modules/util.html b/docs/modules/util.html
index d1d5b04..39f4c16 100644
--- a/docs/modules/util.html
+++ b/docs/modules/util.html
@@ -125,7 +125,7 @@
 </div> <!-- id="main" -->
 <div id="about">
 <i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.3</a></i>
-<i style="float:right;">Last updated 2016-09-07 20:48:49 </i>
+<i style="float:right;">Last updated 2016-09-07 20:53:10 </i>
 </div> <!-- id="about" -->
 </div> <!-- id="container" -->
 </body>
diff --git a/elements/element.lua b/elements/element.lua
index b8f0dd4..e1c211b 100644
--- a/elements/element.lua
+++ b/elements/element.lua
@@ -11,6 +11,9 @@ do
         data = { }
       end
       self.parent, self.data = parent, data
+      if type(self.data ~= "table") then
+        self.data = { }
+      end
     end,
     __base = _base_0,
     __name = "element"
diff --git a/elements/element.moon b/elements/element.moon
index 6c71289..008786f 100644
--- a/elements/element.moon
+++ b/elements/element.moon
@@ -6,7 +6,8 @@
 class element
     --- Constructor expects nothing, or a data table describing it.
     new: (@parent, @data={}) =>
-        --- @todo if data, do stuff about it
+        if type @data != "table"
+            @data = {}
 
     setSize: =>
         --do more stuff!
diff --git a/elements/window.lua b/elements/window.lua
new file mode 100644
index 0000000..b164cad
--- /dev/null
+++ b/elements/window.lua
@@ -0,0 +1,28 @@
+local window
+do
+  local _class_0
+  local _base_0 = {
+    setSize = function(self) end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, parent, data)
+      if data == nil then
+        data = { }
+      end
+      self.parent, self.data = parent, data
+    end,
+    __base = _base_0,
+    __name = "window"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  window = _class_0
+  return _class_0
+end