diff --git a/js/rhino/org/mozilla/javascript/tools/shell/Environment.java b/js/rhino/org/mozilla/javascript/tools/shell/Environment.java
index e66e1f9a3976..4458cc591f0c 100644
--- a/js/rhino/org/mozilla/javascript/tools/shell/Environment.java
+++ b/js/rhino/org/mozilla/javascript/tools/shell/Environment.java
@@ -41,79 +41,79 @@ import java.util.Properties;
  * @author Patrick C. Beard
  */
 public class Environment extends ScriptableObject {
-	private Environment thePrototypeInstance = null;
-	
-	public static void defineClass(ScriptableObject scope) {
+    private Environment thePrototypeInstance = null;
+    
+    public static void defineClass(ScriptableObject scope) {
         try {
-	        ScriptableObject.defineClass(scope, Environment.class);
-	    } catch (Exception e) {
+            ScriptableObject.defineClass(scope, Environment.class);
+        } catch (Exception e) {
             throw new Error(e.getMessage());
-	    }
-	}
+        }
+    }
 
     public String getClassName() {
         return "Environment";
     }
 
-	public Environment() {
-		if (thePrototypeInstance == null)
-			thePrototypeInstance = this;
-	}
-	
-	public Environment(ScriptableObject scope) {
-		setParentScope(scope);
+    public Environment() {
+        if (thePrototypeInstance == null)
+            thePrototypeInstance = this;
+    }
+    
+    public Environment(ScriptableObject scope) {
+        setParentScope(scope);
         Object ctor = ScriptRuntime.getTopLevelProp(scope, "Environment");
         if (ctor != null && ctor instanceof Scriptable) {
             Scriptable s = (Scriptable) ctor;
             setPrototype((Scriptable) s.get("prototype", s));
         }
-	}
-	
-	public boolean has(String name, Scriptable start) {
-    	if (this == thePrototypeInstance)
-    		return super.has(name, start);
-    	
-    	return (System.getProperty(name) != null);
-	}
+    }
+    
+    public boolean has(String name, Scriptable start) {
+        if (this == thePrototypeInstance)
+            return super.has(name, start);
+        
+        return (System.getProperty(name) != null);
+    }
 
     public Object get(String name, Scriptable start) {
-    	if (this == thePrototypeInstance)
-    		return super.get(name, start);
-    		
-    	String result = System.getProperty(name);
-    	if (result != null)
-    		return ScriptRuntime.toObject(getParentScope(), result);
-    	else
-			return Scriptable.NOT_FOUND;
-	}
-	
-	public void put(String name, Scriptable start, Object value) {
-		if (this == thePrototypeInstance)
-			super.put(name, start, value);
-		else
-			System.getProperties().put(name, ScriptRuntime.toString(value));
-	}
+        if (this == thePrototypeInstance)
+            return super.get(name, start);
+        
+        String result = System.getProperty(name);
+        if (result != null)
+            return ScriptRuntime.toObject(getParentScope(), result);
+        else
+            return Scriptable.NOT_FOUND;
+    }
+    
+    public void put(String name, Scriptable start, Object value) {
+        if (this == thePrototypeInstance)
+            super.put(name, start, value);
+        else
+            System.getProperties().put(name, ScriptRuntime.toString(value));
+    }
 
-	private Object[] collectIds() {
-    	Properties props = System.getProperties();
-    	Enumeration names = props.propertyNames();
-    	Vector keys = new Vector();
-    	while (names.hasMoreElements())
-    		keys.addElement(names.nextElement());
-    	Object[] ids = new Object[keys.size()];
-    	keys.copyInto(ids);
-    	return ids;
-	}
+    private Object[] collectIds() {
+        Properties props = System.getProperties();
+        Enumeration names = props.propertyNames();
+        Vector keys = new Vector();
+        while (names.hasMoreElements())
+            keys.addElement(names.nextElement());
+        Object[] ids = new Object[keys.size()];
+        keys.copyInto(ids);
+        return ids;
+    }
 
     public Object[] getIds() {
-    	if (this == thePrototypeInstance)
-    		return super.getIds();
-    	return collectIds();
+        if (this == thePrototypeInstance)
+            return super.getIds();
+        return collectIds();
     }
     
     public Object[] getAllIds() {
-    	if (this == thePrototypeInstance)
-    		return super.getAllIds();
-    	return collectIds();
+        if (this == thePrototypeInstance)
+            return super.getAllIds();
+        return collectIds();
     }
 }
diff --git a/js/rhino/toolsrc/org/mozilla/javascript/tools/shell/Environment.java b/js/rhino/toolsrc/org/mozilla/javascript/tools/shell/Environment.java
index e66e1f9a3976..4458cc591f0c 100644
--- a/js/rhino/toolsrc/org/mozilla/javascript/tools/shell/Environment.java
+++ b/js/rhino/toolsrc/org/mozilla/javascript/tools/shell/Environment.java
@@ -41,79 +41,79 @@ import java.util.Properties;
  * @author Patrick C. Beard
  */
 public class Environment extends ScriptableObject {
-	private Environment thePrototypeInstance = null;
-	
-	public static void defineClass(ScriptableObject scope) {
+    private Environment thePrototypeInstance = null;
+    
+    public static void defineClass(ScriptableObject scope) {
         try {
-	        ScriptableObject.defineClass(scope, Environment.class);
-	    } catch (Exception e) {
+            ScriptableObject.defineClass(scope, Environment.class);
+        } catch (Exception e) {
             throw new Error(e.getMessage());
-	    }
-	}
+        }
+    }
 
     public String getClassName() {
         return "Environment";
     }
 
-	public Environment() {
-		if (thePrototypeInstance == null)
-			thePrototypeInstance = this;
-	}
-	
-	public Environment(ScriptableObject scope) {
-		setParentScope(scope);
+    public Environment() {
+        if (thePrototypeInstance == null)
+            thePrototypeInstance = this;
+    }
+    
+    public Environment(ScriptableObject scope) {
+        setParentScope(scope);
         Object ctor = ScriptRuntime.getTopLevelProp(scope, "Environment");
         if (ctor != null && ctor instanceof Scriptable) {
             Scriptable s = (Scriptable) ctor;
             setPrototype((Scriptable) s.get("prototype", s));
         }
-	}
-	
-	public boolean has(String name, Scriptable start) {
-    	if (this == thePrototypeInstance)
-    		return super.has(name, start);
-    	
-    	return (System.getProperty(name) != null);
-	}
+    }
+    
+    public boolean has(String name, Scriptable start) {
+        if (this == thePrototypeInstance)
+            return super.has(name, start);
+        
+        return (System.getProperty(name) != null);
+    }
 
     public Object get(String name, Scriptable start) {
-    	if (this == thePrototypeInstance)
-    		return super.get(name, start);
-    		
-    	String result = System.getProperty(name);
-    	if (result != null)
-    		return ScriptRuntime.toObject(getParentScope(), result);
-    	else
-			return Scriptable.NOT_FOUND;
-	}
-	
-	public void put(String name, Scriptable start, Object value) {
-		if (this == thePrototypeInstance)
-			super.put(name, start, value);
-		else
-			System.getProperties().put(name, ScriptRuntime.toString(value));
-	}
+        if (this == thePrototypeInstance)
+            return super.get(name, start);
+        
+        String result = System.getProperty(name);
+        if (result != null)
+            return ScriptRuntime.toObject(getParentScope(), result);
+        else
+            return Scriptable.NOT_FOUND;
+    }
+    
+    public void put(String name, Scriptable start, Object value) {
+        if (this == thePrototypeInstance)
+            super.put(name, start, value);
+        else
+            System.getProperties().put(name, ScriptRuntime.toString(value));
+    }
 
-	private Object[] collectIds() {
-    	Properties props = System.getProperties();
-    	Enumeration names = props.propertyNames();
-    	Vector keys = new Vector();
-    	while (names.hasMoreElements())
-    		keys.addElement(names.nextElement());
-    	Object[] ids = new Object[keys.size()];
-    	keys.copyInto(ids);
-    	return ids;
-	}
+    private Object[] collectIds() {
+        Properties props = System.getProperties();
+        Enumeration names = props.propertyNames();
+        Vector keys = new Vector();
+        while (names.hasMoreElements())
+            keys.addElement(names.nextElement());
+        Object[] ids = new Object[keys.size()];
+        keys.copyInto(ids);
+        return ids;
+    }
 
     public Object[] getIds() {
-    	if (this == thePrototypeInstance)
-    		return super.getIds();
-    	return collectIds();
+        if (this == thePrototypeInstance)
+            return super.getIds();
+        return collectIds();
     }
     
     public Object[] getAllIds() {
-    	if (this == thePrototypeInstance)
-    		return super.getAllIds();
-    	return collectIds();
+        if (this == thePrototypeInstance)
+            return super.getAllIds();
+        return collectIds();
     }
 }