Bug 330140: Disable going back after the calendar was really created. patch by robin.edrenius@gmail.com, r=mvl

calendar/resources/content/calendarCreation.js

@@ -136,3 +136,7 @@ function checkURL() {
     }
     return true;
 }
+
+function setCanRewindFalse() {
+   document.getElementById('calendar-wizard').canRewind = false;
+}

calendar/resources/content/calendarCreation.xul

@@ -142,7 +142,8 @@
 
    <wizardpage pageid="finishPage" 
                description="&finishpage.shortdescription;"
-               label="&wizard.label;">
+               label="&wizard.label;"
+               onpageshow="setCanRewindFalse();">
         <description>&finishpage.longdescription;</description>
    </wizardpage>
 </wizard>