[Moo] Element won't get "setStyle"-ed

[KaZuo]

what I want to happen is that after a button is clicked, all the divs
are hidden and the selected div comes out. The prob is, setStyle
doesn't seem to be working out the way it should. Can you help me out
please? Thanks a lot!

here's part of the code and the output:

http://i28.tinypic.com/2iqo8ie.png

the html:

<div class="tabs" id="tabs">
                    <ul id="tabSet1">
                        <li><a href="#" id="clicks"  ><strong>clicks</
strong></a></li>
                        <li><a href="#" id="ref"
class="selected"><strong>refs</strong></a></li>
                        <li><a href="#" id="ref2"  ><strong>refs2</
strong></a></li>
                    </ul>
                </div>

                <div class="tab" id="tabs2">
                    <ul class="tabs-secondary" id="tabSet2">
                        <li><a href="#" id="weekly" title="Weekly"
>Weekly</a></li>
                        <li><a href="#" id="monthly" title="Monthly"
>Monthly</a></li>
                        <li><a href="#" id="yearly" title="Yearly"
class="selected">Yearly</a></li>
                    </ul>
                </div>
                <br class="clear" />
                <div id="results_totalref_yearly"
style="display:block">
                                        <?php
                                                func('ref','yearly');
                    ?>
                </div>
                <div id="results_totalref_monthly"
style="display:none">
                                        <?php
                                                func('ref','monthly');
                    ?>
                </div>
                <div id="results_totalref_weekly"
style="display:none">
                                        <?php
                                                func('ref','weekly');
                    ?>
                </div>

Kind regards:

kazuo