在javascript中显示/隐藏链接

Question

I have 4 links which place under seperate <td> , I want to show/hide the td based on a particular selection of parent object

<td nowrap align=right id="dis_mirr" style="visiblility: visible;">
    <a id="first" style=font-weight:normal href=javascript:createwin();>
        &nbsp;Mirror&nbsp;
    </a>
</td>
<td nowrap align=right>
    <a id="second" style=font-weight:normal href=javascript:breakwin();>
        &nbsp;Break Mirror
    </a>
</td>

here is code:

if(record.get('model') == 'top'){
    document.getElementById('first').visibility = "hidden";
}else{
    document.getElementById('first').visibility = "visible";
}

The code works but the <td> is still there it should be removed when I hide it.

Answer 1

You have to use the parentNode attribute, which will return the parent element, here the <td> :

if(record.get('model') == 'top'){
    document.getElementById('first').parentNode.visibility = "hidden";
} else {
    document.getElementById('first').parentNode.visibility = "visible";
}

Answer 2

尝试这个：

document.getElementById("first").parentNode.style.display = 'none';