如何延長手風琴的點擊方法

Question

我需要延長手風琴的點擊方法。

我有類似：

<div id="accordion"> 
    <h3><a href="#"> 
    <div id="toChange1">Section </div>1</a></h3> 
<div> 
    <p> 
    Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer 
    ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit 
    amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut 
    odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate. 
    </p> 
</div> 
<h3><a href="#"><div id="toChange2">Section </div>2</a></h3> 
<div> 
    <p> 
    Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet 
    purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor 
    velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In 
    suscipit faucibus urna. 
    </p> 
</div> 
<h3><a href="#"><div id="toChange3">Section </div>3</a></h3> 
<div> 
    <p> 
    Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis. 
    Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero 
    ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis 
    lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui. 
    </p> 
    <ul> 
     <li>List item one</li> 
     <li>List item two</li> 
     <li>List item three</li> 
    </ul> 
</div> 

，我需要改變內部H3格的背景色。所以我需要打電話：

$("#toChange1").css("backgroundColor","white"); 

當單擊該標題時。有什麼建議麼？謝謝！！

Answer 1

這可能會改變內容的背景色內H3：

$("div[id^=toChange]").on('click', function(e){ 
    e.preventDefault(); 
    $(this).parent().parent().css("background-color","red"); 
});