--- a/flys-client/src/main/java/de/intevation/flys/client/client/ui/AbstractUIProvider.java	Fri Mar 18 11:32:05 2011 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/AbstractUIProvider.java	Fri Mar 18 12:01:55 2011 +0000
@@ -81,6 +81,11 @@
     }
 
 
+    /**
+     * Creates the 'next' button to step forward to the next state.
+     *
+     * @return the 'next' button.
+     */
     protected Canvas getNextButton() {
         Img go = new Img(MSG.imageNext(), 80, 25);
         go.addClickHandler(this);
@@ -90,6 +95,27 @@
 
 
     /**
+     * Creates the 'back' button to step back to a previous state.
+     *
+     * @param targetState The identifier of the target state.
+     *
+     * @return the 'back' button.
+     */
+    protected Canvas getBackButton(final String targetState) {
+        Img back = new Img(MSG.imageBack(), 16, 16);
+
+        back.addClickHandler(new ClickHandler() {
+            public void onClick(ClickEvent event) {
+                GWT.log("Step back to: " + targetState);
+                GWT.log("TODO: fire StepBack event!");
+            }
+        });
+
+        return back;
+    }
+
+
+    /**
      * This method needs to be implemented by concrete subclasses. It should
      * create a new Canvas object with a representation of <i>data</i>.
      *