diff --git a/transforms/adl2entityclasses.xslt b/transforms/adl2entityclasses.xslt
index 159c171..87dffed 100755
--- a/transforms/adl2entityclasses.xslt
+++ b/transforms/adl2entityclasses.xslt
@@ -8,8 +8,8 @@
     Transform ADL into C# entity classes
     
     $Author: sb $
-    $Revision: 1.21 $
-    $Date: 2009-04-30 17:04:00 $
+    $Revision: 1.22 $
+    $Date: 2009-05-04 15:37:37 $
   -->
 
 <!-- WARNING WARNING WARNING: Do NOT reformat this file! 
@@ -70,7 +70,7 @@
 		//  (c)2007 Cygnet Solutions Ltd
 		//
 		//  Automatically generated from application description using
-		//  adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.21 $', 10)"/>
+		//  adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.22 $', 10)"/>
 		//
 		//  <xsl:value-of select="/adl:application/@revision"/>
 		//
@@ -97,7 +97,7 @@
 		/// &lt;/summary&gt;
 		/// &lt;remarks&gt;
 		/// Automatically generated from description of group <xsl:value-of select="@name"/>
-		/// using adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.21 $', 10)"/>.
+		/// using adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.22 $', 10)"/>.
 		///
 		/// DO NOT EDIT THIS FILE!
 		/// &lt;/remarks&gt;
@@ -123,7 +123,7 @@
 		//  (c)2007 Cygnet Solutions Ltd
 		//
 		//  Automatically generated from application description using
-		//  adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.21 $', 10)"/>
+		//  adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.22 $', 10)"/>
 		//
 		//  <xsl:value-of select="/adl:application/@revision"/>
 		//
@@ -149,7 +149,7 @@
 		/// &lt;/summary&gt;
 		/// &lt;remarks&gt;
 		/// Automatically generated from description of entity <xsl:value-of select="@name"/>
-		/// using adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.21 $', 10)"/>.
+		/// using adl2entityclass.xsl revision <xsl:value-of select="substring( '$Revision: 1.22 $', 10)"/>.
 		/// Note that manually maintained parts of this class may be defined in
 		/// a separate file called <xsl:value-of select="@name"/>.manual.cs, q.v.
 		///
@@ -486,7 +486,12 @@
 			</xsl:choose>
 		</xsl:variable>
 		<xsl:if test="string-length( $validationpattern) &gt; 0">
-			private Regex <xsl:value-of select="@name"/>Validator = new Regex( "<xsl:value-of select="$validationpattern"/>");
+			<xsl:variable name="double-escaped">
+				<xsl:call-template name="double-escape">
+					<xsl:with-param name="string" select="$validationpattern"/>
+				</xsl:call-template>
+			</xsl:variable>
+			private Regex <xsl:value-of select="@name"/>Validator = new Regex( "<xsl:value-of select="$double-escaped"/>");
 		</xsl:if>
 
 		<xsl:if test="$base-type = 'integer'">
@@ -716,6 +721,30 @@
 		</xsl:if>
 	</xsl:template>
 
+	<!-- C# requires that backslash characters in regexps are escaped, 
+	because backslash is the escape character in C#; JavaScript does not
+	require this. So to use the same regexp patterns in both C# and
+	JavaScript we need to double-escape them. This is a beautifully
+	LISPy solution -->
+	<xsl:template name="double-escape">
+		<xsl:param name="string"/>
+		<xsl:choose>
+			<xsl:when test="contains( $string, '\')">
+				<xsl:variable name="recurse">
+					<xsl:call-template name="double-escape">
+						<xsl:with-param name="string">
+							<xsl:value-of select="substring-after( $string, '\')"/>
+						</xsl:with-param>
+					</xsl:call-template>
+				</xsl:variable>
+				<xsl:value-of select="concat( substring-before($string, '\'), '\\', $recurse)"/>
+			</xsl:when>
+			<xsl:otherwise>
+				<xsl:value-of select="$string"/>
+			</xsl:otherwise>
+		</xsl:choose>
+	</xsl:template>
+
 	<xsl:template name="initialise-messages">
 		<!-- each IV of type message needs to be initialised -->
 		<xsl:for-each select="adl:property[@type='message']">
@@ -817,7 +846,7 @@
         <xsl:when test="$base-type = 'integer'">0</xsl:when>
         <xsl:when test="$csharp-type = 'Decimal'">0.0M</xsl:when>
         <xsl:when test="$base-type = 'real'">0.0</xsl:when>
-        <xsl:when test="$base-type = 'date'">new DateTime()</xsl:when>
+        <xsl:when test="$base-type = 'date'">DateTime.Today</xsl:when>
         <xsl:when test="$csharp-type = 'String'">
           <xsl:choose>
             <xsl:when test="@required='true'">