jquery preventDefault with drupal菜單

Question

我在drupal中有一個包含如此多菜單項的頁腳菜單。

<ul class="menu"> 
<li class="expanded first business"> 
<a title="" href="/content/business-tab">Business</a> 
<ul class="menu"> 
<li class="leaf first about_business_mobile"> 
<a title="" href="/content/about-business-mobile">About Business Mobile</a> 
</li> 
<li class="leaf business_mobile_solutions"> 
<a title="" href="/content/business-pay-monthly">Business Mobile Solutions</a> 
</li> 
<li class="leaf value_packs"> 
<a title="" href="/content/business-value-packs">Value Packs</a> 
</li> 
<li class="leaf mobile_broadband"> 
<a title="" href="/content/mobile-broadband">Mobile Broadband</a> 
</li> 
<li class="leaf handsets"> 
<a title="" href="/content/handsets">Handsets</a> 
</li> 
<li class="leaf overseas_roaming"> 
<a title="" href="/content/overseas-roaming">Overseas Roaming</a> 
</li> 
<li class="leaf last overseas_calling_rates"> 
<a title="" href="/content/overseas-calling-rates">Overseas Calling Rates</a> 
</li> 
</ul> 
</li> 
<li class="expanded personal"> 
<a title="" href="/content/personal">Personal</a> 
<ul class="menu"> 
<li class="leaf first about_personal_mobile"> 
<a title="" href="/content/personal-prepay">About Personal Mobile</a> 
</li> 
<li class="leaf personal_mobile_solutions"> 
<a title="" href="/content/personal-prepay">Personal Mobile Solutions</a> 
</li> 
<li class="leaf value_packs"> 
<a title="" href="/content/additional-packs-0">Value Packs</a> 
</li> 
<li class="leaf mobile_broadband"> 
<a title="" href="/content/mobile-broadband">Mobile Broadband</a> 
</li> 
<li class="leaf handsets"> 
<a title="" href="/content/handsets">Handsets</a> 
</li> 
<li class="leaf overseas_roaming"> 
<a title="" href="/content/overseas-roaming">Overseas Roaming</a> 
</li> 
<li class="leaf last overseas_calling_rates"> 
<a title="" href="/content/overseas-calling-rates">Overseas Calling Rates</a> 
</li> 
</ul> 
</li> 
</ul> 

這只是菜單的第一個元素。我想要的是，當我點擊商業菜單時，什麼都不會發生。所以爲此，我使用了Jquery preventDefault函數。

$('#footer li.expanded a:first-child').click(function(e) { 
     e.preventDefault; 
    }); 

但是，當我執行該腳本，它只是停止擴展菜單下各個環節的工作。

Answer 1

這應做到：

$('#footer li.expanded a').click(function(e) { 
    if(!$(this).parent().hasClass('leaf')){ 
     e.preventDefault(); 
    } 
});