简单的jQuery代码在IE9中不起作用

Question

This is my small piece of code for hide-show tabs (like an accordion):

$('#multiOpenAccordion h3').click(function() {
    $(this).next().toggle('slow');
    return false;
});

It is just a copy-paste from the jQuery site - it works in all broswers (including IE7 & IE8) but not IE9.

this is even not a jQuery-UI - only simple jQuery

Why doesn't it work in IE9? How can this be fixed?

Here is my HTML:

<div id="multiOpenAccordion">


                        <h3>
                            <a href="#">
                                <h4>
                                    My Car Proj
                                    <span>Free</span>
                                </h4>
                                <p>
                                    site
                                </p>
                            </a>
                        </h3>
                        <div>Lorem ipsum</div>
                        <h3>
                            <a href="#">
                                <h4>
                                    My Car Probsp;
                                    <span>Free</span>
                                </h4>
                                <p>
                                    bla bla
                                </p>
                            </a>
                        </h3>
                        <div>Lorem ipsum</div>
</div>

Answer 1

if your next points a href in html, try giving these

"href=javascript:void(0)"

then delete your return false

Answer 2

由于某些未知原因，从标头中删除<p>元素解决了该问题（仅在IE9中发生）