--- a/website/src/diff.html.luan	Mon May 11 15:06:46 2015 -0600
+++ b/website/src/diff.html.luan	Mon May 11 15:29:29 2015 -0600
@@ -2,7 +2,9 @@
 local Html = require "luan:Html"
 local Http = require "luan:web/Http"
 local Shared = require "site:/Shared"
+local Manual = require "site:/manual.html"
 
+heading_options = Manual.heading_options
 
 function service()
 	Io.stdout = Http.response.text_writer()
@@ -67,15 +69,15 @@
 
 <hr/>
 
-<h2 margin-top="1em"><a name="intro">Introduction</a></h2>
+<h2 <%=heading_options%> ><a name="intro">Introduction</a></h2>
 
 <p>Lua is one of the simplest languages available, but Luan is even simpler.  This means Luan removes more than it adds.  Most of what is added is added in the library, not in the language itself.</p>
 
 <p>Luan is implemented in Java and is tightly integrated with Java.  This makes it an excellent scripting language for Java.</p>
 
-<h2 margin-top="1em"><a name="basic">Basic Concepts</a></h2>
+<h2 <%=heading_options%> ><a name="basic">Basic Concepts</a></h2>
 
-<h3 margin-top="1em"><a name="types">Values and Types</a></h3>
+<h3 <%=heading_options%> ><a name="types">Values and Types</a></h3>
 
 <p>Luan does not have the Lua <i>thread</i> type.  Luan adds a <i>binary</i> type that Lua doesn't have.  This is because Lua strings can represent binary while Luan strings cannot.</p>
 
@@ -89,49 +91,49 @@
 
 <p>The Luan <i>table</i> type is just like its Lua equivalent, but implemented in Java.</p>
 
-<h3 margin-top="1em"><a name="env">Environments</a></h3>
+<h3 <%=heading_options%> ><a name="env">Environments</a></h3>
 
 <p>Luan has an <tt>_ENV</tt> which is like its Lua equivalent.  However Luan has no global environment at all, no <tt>_G</tt>.</p>
 
 <p>Every module is initialized with two local functions: <tt>require</tt> and <tt>java</tt>.  The module then uses these functions to get access to whatever else it needs.</p>
 
-<h3 margin-top="1em"><a name="error">Error Handling</a></h3>
+<h3 <%=heading_options%> ><a name="error">Error Handling</a></h3>
 
 <p>Luan has the functions <tt>error</tt> and <tt>pcall</tt> but does not have <tt>xpcall</tt>.  Luan adds the function <tt>try</tt> which looks and acts like try-catch blocks in other languages.</p>
 
-<h3 margin-top="1em"><a name="meta">Metatables and Metamethods</a></h3>
+<h3 <%=heading_options%> ><a name="meta">Metatables and Metamethods</a></h3>
 
 <p>Luan only has metatable for tables, not for other types.</p>
 
-<h3 margin-top="1em"><a name="gc">Garbage Collection</a></h3>
+<h3 <%=heading_options%> ><a name="gc">Garbage Collection</a></h3>
 
 <p>Luan uses Java garbage collection.  Luan has no special garbage collection methods.</p>
 
 <p>Luan does not yet have weak tables but this will be added.</p>
 
-<h3 margin-top="1em"><a name="coroutines">Coroutines</a></h3>
+<h3 <%=heading_options%> ><a name="coroutines">Coroutines</a></h3>
 
 <p>Luan does not have coroutines.  Coroutines is a complex concept that isn't needed in a simple language, so it was left out.</p>
 
-<h2 margin-top="1em"><a name="lang">The Language</a></h2>
+<h2 <%=heading_options%> ><a name="lang">The Language</a></h2>
 
-<h3 margin-top="1em"><a name="lex">Lexical Conventions</a></h3>
+<h3 <%=heading_options%> ><a name="lex">Lexical Conventions</a></h3>
 
 <p>Unlike Lua, Luan generally considers the end of a line to be the end of a statement.  This catches errors and encourages readability.  The exception to this is in paranthesis ( <i>(...)</i>, <i>[...]</i>, and <i>{...}</i> ) where the end of line is treated as white space.</p>
 
 <p>Luan has exactly the same set of keywords as Lua and has the same other lexical conventions.</p>
 
-<h3 margin-top="1em"><a name="stmt">Statements</a></h3>
+<h3 <%=heading_options%> ><a name="stmt">Statements</a></h3>
 
 <p>Most statements in Luan are the same as Lua.  Only those statements that differ will be listed here.</p>
 
-<h4 margin-top="1em"><a name="control">Control Structures</a></h4>
+<h4 <%=heading_options%> ><a name="control">Control Structures</a></h4>
 
 <p>The Luan <b>if</b>, <b>while</b>, and <b>repeat</b> statement are the same as in Lua except that the condition expression must return a boolean value.  Any other value type will produce an error.  This helps catch errors and makes code more readable.</p>
 
 <p>Luan does not have a <b>goto</b> statement.</p>
 
-<h4 margin-top="1em"><a name="for">For Statement</a></h4>
+<h4 <%=heading_options%> ><a name="for">For Statement</a></h4>
 
 <p>Luan has no numeric <b>for</b> statement.  Luan only has generic <b>for</b> statement.  Instead of the numeric <b>for</b> statement, Luan uses the <tt>range</tt> function in a generic <b>for</b> statement like this:</p>
 
@@ -158,7 +160,7 @@
 	end
 </pre></tt></p>
 
-<h4 margin-top="1em"><a name="logical">Logical Statements</a></h4>
+<h4 <%=heading_options%> ><a name="logical">Logical Statements</a></h4>
 
 <p>Unlike Lua, Luan allows <b>or</b> and <b>and</b> expressions to be stand-alone statements.  This is useful in cases like this:</p>
 
@@ -166,34 +168,34 @@
 	x==5 or error "x should be 5"
 </pre></tt></p>
 
-<h4 margin-top="1em"><a name="template_stmt">Template Statements</a></h4>
+<h4 <%=heading_options%> ><a name="template_stmt">Template Statements</a></h4>
 
 <p>Template statements are a Luan addition that don't exist in Lua.  See <a href="manual.html#template_stmt">Template Statements</a> in the Luan Reference Manual.</p>
 
 
-<h3 margin-top="1em"><a name="expr">Expressions</a></h3>
+<h3 <%=heading_options%> ><a name="expr">Expressions</a></h3>
 
-<h4 margin-top="1em"><a name="conversions">Coercions and Conversions</a></h4>
+<h4 <%=heading_options%> ><a name="conversions">Coercions and Conversions</a></h4>
 
 <p>Unlike Lua, Luan does not do automatic conversions of strings to numbers.</p>
 
-<h4 margin-top="1em"><a name="bit">Bitwise Operators</a></h4>
+<h4 <%=heading_options%> ><a name="bit">Bitwise Operators</a></h4>
 
 <p>Bitwise operators appear to be a new addition to Lua 5.3 and didn't exist in Lua 5.2.  Luan does not support bitwise operators, but these can be added if there is a need.</p>
 
-<h4 margin-top="1em"><a name="logical_ops">Logical Operators</a></h4>
+<h4 <%=heading_options%> ><a name="logical_ops">Logical Operators</a></h4>
 
 <p>The only change in Luan is that <b>not</b> must take a boolean argument.  This helps catch errors and makes code more readable.</p>
 
-<h4 margin-top="1em"><a name="concatenation">Concatenation</a></h4>
+<h4 <%=heading_options%> ><a name="concatenation">Concatenation</a></h4>
 
 <p>Unlike Lua, Luan converts all concatenation operands to strings.
 
-<h4 margin-top="1em"><a name="fn_calls">Function Calls</a></h4>
+<h4 <%=heading_options%> ><a name="fn_calls">Function Calls</a></h4>
 
 <p>Luan does not support Lua's <tt>v:name(args)</tt> style object-oriented function call.  Object oriented programming is done in Luan using closures, so this feature is not needed.</p>
 
-<h4 margin-top="1em"><a name="template_expr">Template Expressions</a></h4>
+<h4 <%=heading_options%> ><a name="template_expr">Template Expressions</a></h4>
 
 <p>Template expressions are a Luan addition that don't exist in Lua.  See <a href="manual.html#template_expr">Template Expressions</a> in the Luan Reference Manual.</p>
 

--- a/website/src/manual.html.luan	Mon May 11 15:06:46 2015 -0600
+++ b/website/src/manual.html.luan	Mon May 11 15:29:29 2015 -0600
@@ -4,6 +4,7 @@
 local Http = require "luan:web/Http"
 local Shared = require "site:/Shared"
 
+heading_options = [[margin-top="1em"]]
 
 function service()
 	Io.stdout = Http.response.text_writer()
@@ -96,7 +97,7 @@
 <hr/>
 
 
-<h2 margin-top="1em"><a name="intro">Introduction</a></h2>
+<h2 <%=heading_options%> ><a name="intro">Introduction</a></h2>
 
 <p>Luan is a high level programming language based on <a href="http://www.lua.org">Lua</a>.  A great strength of Lua is its simplicity and Luan takes this even further, being even simpler than Lua.  The goal is to provide a simple programming language for the casual programmer with as few concepts as possible so that one can quickly learn the language and then easily understand any code written in Luan.</p>
 
@@ -105,11 +106,11 @@
 <p>Unlike Lua which is meant to be embedded, Luan is meant to be a full scripting language.  This done not by adding feature to Luan, but rather by providing a complete set of libraries.</p>
 
 
-<h2 margin-top="1em"><a name="basic">Basic Concepts</a></h2>
+<h2 <%=heading_options%> ><a name="basic">Basic Concepts</a></h2>
 
 <p>This section describes the basic concepts of the language.</p>
 
-<h3 margin-top="1em"><a name="types">Values and Types</a></h3>
+<h3 <%=heading_options%> ><a name="types">Values and Types</a></h3>
 
 <p>
 Luan is a <i>dynamically typed language</i>.
@@ -228,7 +229,7 @@
 
 
 
-<h3 margin-top="1em"><a name="env">Environments</a></h3>
+<h3 <%=heading_options%> ><a name="env">Environments</a></h3>
 
 <p>
 As will be discussed in <a href="#vars">Variables</a> and <a href=#assignment">Assignment</a>,
@@ -265,7 +266,7 @@
 
 
 
-<h3 margin-top="1em"><a name="error">Error Handling</a></h3>
+<h3 <%=heading_options%> ><a name="error">Error Handling</a></h3>
 
 <p>
 Luan code can explicitly generate an error by calling the
@@ -288,7 +289,7 @@
 
 
 
-<h3 margin-top="1em"><a name="meta">Metatables and Metamethods</a></h3>
+<h3 <%=heading_options%> ><a name="meta">Metatables and Metamethods</a></h3>
 
 <p>
 Every table in Luan can have a <i>metatable</i>.
@@ -512,7 +513,7 @@
 
 
 
-<h3 margin-top="1em"><a name="gc">Garbage Collection</a></h3>
+<h3 <%=heading_options%> ><a name="gc">Garbage Collection</a></h3>
 
 <p>
 Luan uses Java's garbage collection.
@@ -521,7 +522,7 @@
 
 
 
-<h2 margin-top="1em"><a name="lang">The Language</a></h2>
+<h2 <%=heading_options%> ><a name="lang">The Language</a></h2>
 
 <p>
 This section describes the lexis, the syntax, and the semantics of Luan.
@@ -545,7 +546,7 @@
 
 
 
-<h3 margin-top="1em"><a name="lex">Lexical Conventions</a></h3>
+<h3 <%=heading_options%> ><a name="lex">Lexical Conventions</a></h3>
 
 <p>
 Luan ignores spaces and comments
@@ -720,7 +721,7 @@
 
 
 
-<h3 margin-top="1em"><a name="vars">Variables</a></h3>
+<h3 <%=heading_options%> ><a name="vars">Variables</a></h3>
 
 <p>
 Variables are places that store values.
@@ -788,7 +789,7 @@
 
 
 
-<h3 margin-top="1em"><a name="stmts">Statements</a></h3>
+<h3 <%=heading_options%> ><a name="stmts">Statements</a></h3>
 
 <p>
 Luan supports an almost conventional set of statements,
@@ -799,7 +800,7 @@
 
 
 
-<h4 margin-top="1em"><a name="blocks">Blocks</a></h4>
+<h4 <%=heading_options%> ><a name="blocks">Blocks</a></h4>
 
 <p>
 A block is a list of statements,
@@ -837,7 +838,7 @@
 
 
 
-<h4 margin-top="1em"><a name="chunks">Chunks</a></h4>
+<h4 <%=heading_options%> ><a name="chunks">Chunks</a></h4>
 
 <p>
 The unit of compilation of Luan is called a <i>chunk</i>.
@@ -867,7 +868,7 @@
 
 
 
-<h4 margin-top="1em"><a name="assignment">Assignment</a></h4>
+<h4 <%=heading_options%> ><a name="assignment">Assignment</a></h4>
 
 <p>
 Luan allows multiple assignments.
@@ -951,7 +952,7 @@
 
 
 
-<h4 margin-top="1em"><a name="control">Control Structures</a></h4>
+<h4 <%=heading_options%> ><a name="control">Control Structures</a></h4>
 
 <p>
 The control structures
@@ -1012,7 +1013,7 @@
 
 
 
-<h4 margin-top="1em"><a name="for">For Statement</a></h4>
+<h4 <%=heading_options%> ><a name="for">For Statement</a></h4>
 
 <p>
 The <b>for</b> statement works over functions,
@@ -1078,7 +1079,7 @@
 
 
 
-<h4 margin-top="1em"><a name="fn_stmt">Function Calls as Statements</a></h4>
+<h4 <%=heading_options%> ><a name="fn_stmt">Function Calls as Statements</a></h4>
 
 <p>
 To allow possible side-effects,
@@ -1094,7 +1095,7 @@
 
 
 
-<h4 margin-top="1em"><a name="local_stmt">Local Declarations</a></h4>
+<h4 <%=heading_options%> ><a name="local_stmt">Local Declarations</a></h4>
 
 <p>
 Local variables can be declared anywhere inside a block.
@@ -1119,7 +1120,7 @@
 The visibility rules for local variables are explained in <a href="#visibility">Visibility Rules</a>.
 
 
-<h4 margin-top="1em"><a name="template_stmt">Template Statements</a></h4>
+<h4 <%=heading_options%> ><a name="template_stmt">Template Statements</a></h4>
 
 <p>Template statements are based on <a href="#template_expr">template exressions</a> and provide the full equivalent of <a href="http://en.wikipedia.org/wiki/JavaServer_Pages">JSP</a> but in a general way.  Template statements write the equivalent template exression to standard output.  For example:</p>
 
@@ -1143,7 +1144,7 @@
 
 
 
-<h3 margin-top="1em"><a name="expressions">Expressions</a></h3>
+<h3 <%=heading_options%> ><a name="expressions">Expressions</a></h3>
 
 <p>
 The basic expressions in Luan are the following:
@@ -1229,7 +1230,7 @@
 
 
 
-<h4 margin-top="1em"><a name="arithmetic">Arithmetic Operators</a></h4>
+<h4 <%=heading_options%> ><a name="arithmetic">Arithmetic Operators</a></h4>
 
 <p>
 Luan supports the following arithmetic operators:
@@ -1254,7 +1255,7 @@
 
 
 
-<h4 margin-top="1em"><a name="conversions">Coercions and Conversions</a></h4>
+<h4 <%=heading_options%> ><a name="conversions">Coercions and Conversions</a></h4>
 
 <p>
 Luan generally avoids automatic conversions.
@@ -1266,7 +1267,7 @@
 
 
 
-<h4 margin-top="1em"><a name="relational">Relational Operators</a></h4>
+<h4 <%=heading_options%> ><a name="relational">Relational Operators</a></h4>
 
 <p>
 Luan supports the following relational operators:
@@ -1332,7 +1333,7 @@
 
 
 
-<h4 margin-top="1em"><a name="logical_ops">Logical Operators</a></h4>
+<h4 <%=heading_options%> ><a name="logical_ops">Logical Operators</a></h4>
 
 <p>
 The logical operators in Luan are
@@ -1372,7 +1373,7 @@
 
 
 
-<h4 margin-top="1em"><a name="concatenation">Concatenation</a></h4>
+<h4 <%=heading_options%> ><a name="concatenation">Concatenation</a></h4>
 
 <p>
 The string concatenation operator in Luan is
@@ -1381,7 +1382,7 @@
 
 
 
-<h4 margin-top="1em"><a name="length">The Length Operator</a></h4>
+<h4 <%=heading_options%> ><a name="length">The Length Operator</a></h4>
 
 <p>
 The length operator is denoted by the unary prefix operator <tt>#</tt>.
@@ -1415,7 +1416,7 @@
 
 
 
-<h4 margin-top="1em"><a name="precedence">Precedence</a></h4>
+<h4 <%=heading_options%> ><a name="precedence">Precedence</a></h4>
 
 <p>
 Operator precedence in Luan follows the table below,
@@ -1443,7 +1444,7 @@
 
 
 
-<h4 margin-top="1em"><a name="constructors">Table Constructors</a></h4>
+<h4 <%=heading_options%> ><a name="constructors">Table Constructors</a></h4>
 
 <p>
 Table constructors are expressions that create tables.
@@ -1511,7 +1512,7 @@
 
 
 
-<h4 margin-top="1em"><a name="fn_calls">Function Calls</a></h4>
+<h4 <%=heading_options%> ><a name="fn_calls">Function Calls</a></h4>
 
 <p>
 A function call in Luan has the following syntax:
@@ -1580,7 +1581,7 @@
 
 
 
-<h4 margin-top="1em"><a name="fn_def">Function Definitions</a></h4>
+<h4 <%=heading_options%> ><a name="fn_def">Function Definitions</a></h4>
 
 <p>
 The syntax for function definition is
@@ -1728,7 +1729,7 @@
 then the function returns with no results.
 
 
-<h4 margin-top="1em"><a name="template_expr">Template Expressions</a></h4>
+<h4 <%=heading_options%> ><a name="template_expr">Template Expressions</a></h4>
 
 <p>Luan template expression are based on <a href="http://en.wikipedia.org/wiki/JavaServer_Pages">JSP</a>.  Template expressions return multiple values.  Here is an example:</p>
 
@@ -1748,7 +1749,7 @@
 
 
 
-<h3 margin-top="1em"><a name="visibility">Visibility Rules</a></h3>
+<h3 <%=heading_options%> ><a name="visibility">Visibility Rules</a></h3>
 
 <p>
 Luan is a lexically scoped language.
@@ -1811,7 +1812,7 @@
 
 
 
-<h2 margin-top="1em"><a name="libs">Standard Libraries</a></h2>
+<h2 <%=heading_options%> ><a name="libs">Standard Libraries</a></h2>
 
 <p>
 The standard Luan libraries provide useful functions
@@ -1822,25 +1823,25 @@
 others provide access to "outside" services (e.g., I/O).
 
 
-<h3 margin-top="1em"><a name="default_lib">Default Environment</a></h3>
+<h3 <%=heading_options%> ><a name="default_lib">Default Environment</a></h3>
 
 <p>
 These are provided by default as local variables for any Luan code as described in <a href="#env">Environments</a>.
 
 
-<h4 margin-top="1em"><a name="_ENV"><tt>_ENV</tt></a></h4>
+<h4 <%=heading_options%> ><a name="_ENV"><tt>_ENV</tt></a></h4>
 
 <p>
 This is a table that holds the global variables of a module as described in <a href="#env">Environments</a>.
 
 
-<h4 margin-top="1em"><a name="require"><tt>java ()</tt></a></h4>
+<h4 <%=heading_options%> ><a name="require"><tt>java ()</tt></a></h4>
 
 <p>
 This function enables Java in the current chunk if that chunk has permission to use Java.  If the chunk doesn't have permission to use Java, then an error is thrown.
 
 
-<h4 margin-top="1em"><a name="require"><tt>require (mod_uri)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="require"><tt>require (mod_uri)</tt></a></h4>
 
 <p>
 Example use:
@@ -1859,7 +1860,7 @@
 </pre></tt></p>
 
 
-<h3 margin-top="1em"><a name="luan_lib">Basic Functions</a></h3>
+<h3 <%=heading_options%> ><a name="luan_lib">Basic Functions</a></h3>
 
 <p>
 Include this library by:
@@ -1872,7 +1873,7 @@
 The basic library provides basic functions to Luan that don't depend on other libaries.
 
 
-<h4 margin-top="1em"><a name="Luan.assert"><tt>Luan.assert (v [, message])</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert"><tt>Luan.assert (v [, message])</tt></a></h4>
 
 <p>
 Could be defined as:
@@ -1884,7 +1885,7 @@
 </pre></tt></p>
 
 
-<h4 margin-top="1em"><a name="Luan.assert_binary"><tt>Luan.assert_binary (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_binary"><tt>Luan.assert_binary (v)</tt></a></h4>
 
 <p>
 Could be defined as:
@@ -1897,43 +1898,43 @@
 </pre></tt></p>
 
 
-<h4 margin-top="1em"><a name="Luan.assert_boolean"><tt>Luan.assert_boolean (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_boolean"><tt>Luan.assert_boolean (v)</tt></a></h4>
 
 <p>
 Like <a href="#Luan.assert_binary"><tt>assert_binary</tt></a> but for type <tt>boolean</tt>.
 
 
-<h4 margin-top="1em"><a name="Luan.assert_integer"><tt>Luan.assert_integer (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_integer"><tt>Luan.assert_integer (v)</tt></a></h4>
 
 <p>
 Asserts that <tt>v</tt> can be converted to Java type <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html">Integer</a> and returns an Integer.
 
 
-<h4 margin-top="1em"><a name="Luan.assert_long"><tt>Luan.assert_long (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_long"><tt>Luan.assert_long (v)</tt></a></h4>
 
 <p>
 Asserts that <tt>v</tt> can be converted to Java type <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html">Long</a> and returns a Long.
 
 
-<h4 margin-top="1em"><a name="Luan.assert_number"><tt>Luan.assert_number (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_number"><tt>Luan.assert_number (v)</tt></a></h4>
 
 <p>
 Like <a href="#Luan.assert_binary"><tt>assert_binary</tt></a> but for type <tt>number</tt>.
 
 
-<h4 margin-top="1em"><a name="Luan.assert_string"><tt>Luan.assert_string (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_string"><tt>Luan.assert_string (v)</tt></a></h4>
 
 <p>
 Like <a href="#Luan.assert_binary"><tt>assert_binary</tt></a> but for type <tt>string</tt>.
 
 
-<h4 margin-top="1em"><a name="Luan.assert_table"><tt>Luan.assert_table (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.assert_table"><tt>Luan.assert_table (v)</tt></a></h4>
 
 <p>
 Like <a href="#Luan.assert_binary"><tt>assert_binary</tt></a> but for type <tt>table</tt>.
 
 
-<h4 margin-top="1em"><a name="Luan.do_file"><tt>Luan.do_file ([uri])</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.do_file"><tt>Luan.do_file ([uri])</tt></a></h4>
 
 <p>
 Could be defined as:
@@ -1946,13 +1947,13 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.error"><tt>Luan.error (message)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.error"><tt>Luan.error (message)</tt></a></h4>
 
 <p>
 Throws an error containing the message.  This uses Java exceptions internally and the implementation is likely to change.  So this documentation is likely to change.
 
 
-<h4 margin-top="1em"><a name="Luan.get_metatable"><tt>Luan.get_metatable (table)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.get_metatable"><tt>Luan.get_metatable (table)</tt></a></h4>
 
 <p>
 If <tt>table</tt> does not have a metatable, returns <b>nil</b>.
@@ -1962,7 +1963,7 @@
 Otherwise, returns the metatable of the given table.
 
 
-<h4 margin-top="1em"><a name="Luan.ipairs"><tt>Luan.ipairs (t)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.ipairs"><tt>Luan.ipairs (t)</tt></a></h4>
 
 <p>
 Returns an iterator function
@@ -1994,7 +1995,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.load"><tt>Luan.load (text, source_name [env, [, allow_expression]])</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.load"><tt>Luan.load (text, source_name [env, [, allow_expression]])</tt></a></h4>
 
 <p>
 Loads a chunk.
@@ -2015,7 +2016,7 @@
 If the <tt>allow_expression</tt> parameter is <tt>true</tt> then the entire text can be nothing more than an expression in which case the chunk returns the value of this expression.
 
 
-<h4 margin-top="1em"><a name="Luan.load_file"><tt>Luan.load_file (file_uri [, add_extension])</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.load_file"><tt>Luan.load_file (file_uri [, add_extension])</tt></a></h4>
 
 <p>
 Similar to <a href="#Luan.load"><tt>load</tt></a>,
@@ -2037,7 +2038,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.pairs"><tt>Luan.pairs (t)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.pairs"><tt>Luan.pairs (t)</tt></a></h4>
 
 <p>
 If <tt>t</tt> has a metamethod <tt>__pairs</tt>,
@@ -2059,7 +2060,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.pcall"><tt>Luan.pcall (f [, arg1, &middot;&middot;&middot;])</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.pcall"><tt>Luan.pcall (f [, arg1, &middot;&middot;&middot;])</tt></a></h4>
 
 <p>
 Calls function <tt>f</tt> with
@@ -2089,7 +2090,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.range"><tt>Luan.range (start, stop [, step])</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.range"><tt>Luan.range (start, stop [, step])</tt></a></h4>
 
 <p>
 Based on <a href="https://docs.python.org/2/library/functions.html#range">the Python range() function</a>, this lets one iterate through a sequence of numbers.
@@ -2126,7 +2127,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.raw_equal"><tt>Luan.raw_equal (v1, v2)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.raw_equal"><tt>Luan.raw_equal (v1, v2)</tt></a></h4>
 
 <p>
 Checks whether <tt>v1</tt> is equal to <tt>v2</tt>,
@@ -2135,7 +2136,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.raw_get"><tt>Luan.raw_get (table, index)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.raw_get"><tt>Luan.raw_get (table, index)</tt></a></h4>
 
 <p>
 Gets the real value of <tt>table[index]</tt>,
@@ -2145,7 +2146,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.raw_len"><tt>Luan.raw_len (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.raw_len"><tt>Luan.raw_len (v)</tt></a></h4>
 
 <p>
 Returns the length of the object <tt>v</tt>,
@@ -2155,7 +2156,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.raw_set"><tt>Luan.raw_set (table, index, value)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.raw_set"><tt>Luan.raw_set (table, index, value)</tt></a></h4>
 
 <p>
 Sets the real value of <tt>table[index]</tt> to <tt>value</tt>,
@@ -2168,7 +2169,7 @@
 This function returns <tt>table</tt>.
 
 
-<h4 margin-top="1em"><a name="Luan.set_metatable"><tt>Luan.set_metatable (table, metatable)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.set_metatable"><tt>Luan.set_metatable (table, metatable)</tt></a></h4>
 
 <p>
 Sets the metatable for the given table.
@@ -2217,7 +2218,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.to_string"><tt>Luan.to_string (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.to_string"><tt>Luan.to_string (v)</tt></a></h4>
 
 <p>
 Receives a value of any type and
@@ -2231,7 +2232,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.try"><tt>Luan.try (t)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.try"><tt>Luan.try (t)</tt></a></h4>
 
 <p>
 Implements try-catch as found in other languages where each block is in table <tt>t</tt>.
@@ -2255,7 +2256,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.type"><tt>Luan.type (v)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.type"><tt>Luan.type (v)</tt></a></h4>
 
 <p>
 Returns the type of its only argument, coded as a string.
@@ -2270,7 +2271,7 @@
 and "<tt>userdata</tt>".
 
 
-<h4 margin-top="1em"><a name="Luan.values"><tt>Luan.values (&middot;&middot;&middot;)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.values"><tt>Luan.values (&middot;&middot;&middot;)</tt></a></h4>
 
 <p>
 Returns a function so that the construction
@@ -2284,7 +2285,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Luan.VERSION"><tt>Luan.VERSION</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Luan.VERSION"><tt>Luan.VERSION</tt></a></h4>
 
 <p>
 A global variable (not a function) that
@@ -2296,7 +2297,7 @@
 
 
 
-<h3 margin-top="1em"><a name="package_lib">Modules</a></h3>
+<h3 <%=heading_options%> ><a name="package_lib">Modules</a></h3>
 
 <p>
 Include this library by:
@@ -2310,7 +2311,7 @@
 facilities for loading modules in Luan.
 
 
-<h4 margin-top="1em"><a name="Package.load"><tt>Package.load (mod_uri)</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Package.load"><tt>Package.load (mod_uri)</tt></a></h4>
 
 <p>
 Loads the given module.
@@ -2332,7 +2333,7 @@
 
 
 
-<h4 margin-top="1em"><a name="Package.loaded"><tt>Package.loaded</tt></a></h4>
+<h4 <%=heading_options%> ><a name="Package.loaded"><tt>Package.loaded</tt></a></h4>
 
 
 <p>