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我想訪問按鈕元素(div)的父節點,但每次都收到錯誤。這是我想要做的。簡而言之,這是一個有2個div的頁面。我只想要一次顯示一個div。第一頁上有一個按鈕,它切換到第二個按鈕,第二個按鈕應該返回到第一個按鈕(但不是因爲它無法找到父節點)。使用按鈕訪問父節點
<div class="pageContent" id="page_3">
<div class="primaryPage" id="primaryPage_3">
<h2>Bills_______________________</h2>
<p>Here are my monthly Bills<br><br>blah blah</p>
<button type="button" id="billButton" onclick="newBill()">Add Bill</button>
</div>
<div class="pageContent" id="billPage">
<p>this is the bill page</p>
<button class="backButton" onclick="back()">Back</button>
</div>
</div>
function newBill(){
document.getElementById("primaryPage_3").style.display = "none";
document.getElementById("billPage").style.display = "block";
document.getElementById("billPage").setAttribute("back", "primaryPage_3");
}
function back(){
var previousPage = this.parentNode.getAttribute("back");
this.parentNode.style.display = "none";
document.getElementById(previousPage).style.display = "block";
}
這樣做,謝謝! – 2012-07-17 04:22:51