我有一个无序列表,其中包含我正在尝试展开的列表,并在用户点击打开和关闭图像时关闭。
<ul>
<span id="0">
<label class="rwfmsg">
<img id="img0" src="close.png"></img>
RWF Message
</label>
</span>
<li></li>
<li></li>
<li>
<span id="3">
<label>
<img id="img3" src="close.png"></img>
Message Key Flags
</label>
</span>
<span id="txt3" style="display: none">
<ol>
<li class="field"></li>
<li class="field"></li>
<li class="field"></li>
</ol>
</span>
</li>
<li></li>
</ul>
当我在浏览器中查看它时,Message Key Flags标签旁边的箭头会折叠,但是当我点击它时,它不会展开......
这是Javascript:
<script language="javascript">
<!--
var Open = ""
var Closed = ""
function init() {
if (document.images) {
Open = new Image(15, 15)
Closed = new Image(15, 15)
Open.src = "open.png"
Closed.src = "close.png"
}
var i;
var x = document.getElementsByTagName("img");
for (i = 0; i < x.length; i++) {
x[i].id = 'img' + i;
}
var n = 0;
x = document.getElementsByTagName("span");
for (i = 0; i < x.length; i++) {
if ((i % 2) == 0) {
x[i].id = '' + n;
x[i].onclick = function() {
showhide(this);
};
} else {
x[i].id = 'txt' + n;
n++;
}
}
}
function showhide(elt) {
var img = document.getElementById('img' + elt.id);
var txt = document.getElementById('txt' + elt.id);
if (txt.style.display == 'none') {
txt.style.display = '';
img.src = Open.src
} else {
txt.style.display = 'none'
img.src = Closed.src
}
}
-->
</script>
关于为什么展开/折叠不起作用的任何想法?