I am trying to have a JavaScript function executed after the completion of a save method in my Apex controller using an apex:actionStatus tag, but I can't seem to be able to get it to work.  Here is the portion of the code I am working with that isn't working properly:

<apex:page showHeader="false" controller="AddCodesController">
    <script>

    function CloseWindow() {
        console.log('hey');
        window.opener.refreshParent();
        window.close()
    }
    </script>
    <apex:form id="addCodesForm">
        <apex:pageBlock title="Add Related Codes" id="myData">
            <apex:pageBlockButtons >
                <apex:commandButton action="{!save}" value="Save & Close" status="closer"/>
                <apex:commandButton value="Cancel" onclick="window.close()"/>   
                <apex:actionStatus startText="(Saving...)" stopText="" onStop="CloseWindow();" id="closer"/>
            </apex:pageBlockButtons>  
       </apex:pageBlock>
    </apex:form>
</apex:page


I put the console.log() in there just to see if it was firing, and I can't get it to show up.  I have searched and looked at probably 5 or 6 different examples and it seems like I have written this properly, but I can't for the life of me figure out what is going wrong.  Any help would be greatly appreciated it.