Index: D:/java_files/eclipse/workspace/jetspeed-2/layout-portlets/src/java/org/apache/jetspeed/portlets/layout/ColumnLayout.java
===================================================================
--- D:/java_files/eclipse/workspace/jetspeed-2/layout-portlets/src/java/org/apache/jetspeed/portlets/layout/ColumnLayout.java	(revision 393485)
+++ D:/java_files/eclipse/workspace/jetspeed-2/layout-portlets/src/java/org/apache/jetspeed/portlets/layout/ColumnLayout.java	(working copy)
@@ -17,12 +17,14 @@
 
 import java.io.Serializable;
 import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.SortedMap;
 import java.util.TreeMap;
@@ -69,8 +71,11 @@
     /** Percentage widths gutter width */
     private final static double PERCENTAGE_WIDTH_GUTTER = 0.01;
 
+    /** Force the usage of english formatted widths (dot as decimal separator) in html source */
+    private final static DecimalFormatSymbols DECIMAL_FORMAT_SYMBOLS = new DecimalFormatSymbols( Locale.ENGLISH );
+    
     /** Percentage widths format */
-    private final static DecimalFormat PERCENTAGE_WIDTH_FORMAT = new DecimalFormat("0.00'%'");
+    private final static DecimalFormat PERCENTAGE_WIDTH_FORMAT = new DecimalFormat("0.00'%'", DECIMAL_FORMAT_SYMBOLS );
 
     /** Constrains the columns for this layout */
     private final int numberOfColumns;