diff --git a/functions/ibase.xml b/functions/ibase.xml
index 9dbb473594..ceeaaf472c 100644
--- a/functions/ibase.xml
+++ b/functions/ibase.xml
@@ -1,18 +1,7 @@
  <reference id="ref.ibase">
   <title>InterBase functions</title>
   <titleabbrev>InterBase</titleabbrev>
-   <refnamediv>
-    <refname>checkdate</refname>
-    <refpurpose>validate a date/time</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcdef>int <function>checkdate</function></funcdef>
-     <paramdef>int <parameter>month</parameter></paramdef>
-     <paramdef>int <parameter>day</parameter></paramdef>
-     <paramdef>int <parameter>year</parameter></paramdef>
-    </funcsynopsis>
+
   <partintro>
    <para>
    </para>
@@ -27,19 +16,16 @@
     <title>Description</title>
     <funcsynopsis>
      <funcdef>int <function>ibase_connect</function></funcdef>
-     <paramdef> <parameter>string database</parameter></paramdef>
-	 <paramdef> <optional> string username 
-				<optional> string password </optional>
-	 			</optional>
-	 </paramdef>
-     <parameter>
+     <paramdef>string <parameter>database</parameter></paramdef>
+     <paramdef>string <parameter><optional>username</optional></parameter></paramdef>
+     <paramdef>string <parameter><optional>password</optional></parameter></paramdef>
     </funcsynopsis>
-	<simpara>
-	Opens a connection to an Interbase database.
-	</simpara>
-	<para>
-	See also: <function>ibase_pconnect</function>.
-	</para>
+    <simpara>
+     Opens a connection to an Interbase database.
+    </simpara>
+    <para>
+     See also: <function>ibase_pconnect</function>.
+    </para>
    </refsect1>
   </refentry>
 
@@ -49,21 +35,19 @@
     <refpurpose></refpurpose>
    </refnamediv>
    <refsect1>
+    <title>Description</title>
     <funcsynopsis>
      <funcdef>int <function>ibase_connect</function></funcdef>
-     <paramdef> <parameter>string database</parameter></paramdef>
-	 <paramdef> <optional> string username 
-				<optional> string password </optional>
-	 			</optional>
-	 </paramdef>
-     <parameter>
+     <paramdef>string <parameter>database</parameter></paramdef>
+     <paramdef>string <parameter><optional>username</optional></parameter></paramdef>
+     <paramdef>string <parameter><optional>password</optional></parameter></paramdef>
     </funcsynopsis>
-	<simpara>
-	Opens a persistent connection to an Interbase database.
-	</simpara>
-	<para>
-	See also <function>ibase_connect</function>.
-	</para>
+    <simpara>
+     Opens a persistent connection to an Interbase database.
+    </simpara>
+    <para>
+     See also <function>ibase_connect</function>.
+    </para>
    </refsect1>
   </refentry>
 
@@ -76,11 +60,11 @@
     <title>Description</title>
     <funcsynopsis>
      <funcdef>int <function>ibase_close</function></funcdef>
-     <paramdef> <parameter><optional>int connection_id</optional></parameter></paramdef>
+     <paramdef>int <parameter><optional>connection_id</optional></parameter></paramdef>
     </funcsynopsis>
-	<para>
-	Close a connection to an Interbase database.  This function takes a connection id returned from ibase_connect.
-	</para>
+    <para>
+     Close a connection to an Interbase database.  This function takes a connection id returned from ibase_connect.
+    </para>
    </refsect1>
   </refentry>
 
@@ -93,14 +77,16 @@
     <title>Description</title>
     <funcsynopsis>
      <funcdef>int <function>ibase_query</function></funcdef>
-     <paramdef> <parameter><optional> int link_identifier</optional></parameter></paramdef>
-	 <paramdef> <parameter> string query </parameter> </paramdef>
-	 <paramdef> <parameter><optional> int bind_args </optional></parameter> </paramdef>
+     <paramdef>int <parameter><optional>link_identifier</optional></parameter></paramdef>
+     <paramdef>string <parameter>query</parameter> </paramdef>
+     <paramdef>int <parameter><optional>bind_args</optional></parameter> </paramdef>
     </funcsynopsis>
-	<simpara>
-		Performs a query on a Interbase database, returning a result identifier for use with <function>ibase_fetch_row</function>, 
-		<function>ibase_free_result</function> and <function>ibase_free_query</function>.
-	</simpara>
+    <simpara>
+     Performs a query on a Interbase database, returning a result
+     identifier for use with <function>ibase_fetch_row</function>,
+     <function>ibase_free_result</function> and
+     <function>ibase_free_query</function>.
+    </simpara>
    </refsect1>
   </refentry>
 
@@ -132,8 +118,9 @@
      <funcdef>int  <function>ibase_free_result</function></funcdef>
      <paramdef> <parameter>int result_identifier</parameter></paramdef>
     </funcsynopsis>
-	<simpara>
-	Free's a result set the has been created by <function>ibase_query</function>.
+    <simpara>
+     Free's a result set the has been created by <function>ibase_query</function>.
+    </simpara>
    </refsect1>
   </refentry>
 
@@ -149,9 +136,11 @@
      <paramdef> <parameter><optional>int link_identifier</optional></parameter></paramdef>
 	 <paramdef> <parameter> string query</parameter></paramdef>
     </funcsynopsis>
-	<simpara>
-	Prepare a query for later binding of parameter placeholders (via <function>ibase_bind</function>) and execution 
-	(via <function>ibase_execute</function>). 
+    <simpara>
+     Prepare a query for later binding of parameter placeholders (via
+     <function>ibase_bind</function>) and execution (via
+     <function>ibase_execute</function>).
+    </simpara>
    </refsect1>
   </refentry>