一个HTML页面中有一个标题,想要实现的效果是:
标题旁边是一个[-]标签,点击后,被隐藏的段落被展开,标签变为[-],
再次点击[-]标签后,展开的段落被隐藏,
以下是代码,可是运行的时候,点击标签,段落可以实现收放,可是那个标签却完全没有改变,请问是什么原因呢?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script language="javascript" type="text/javascript">
function toggle(iconId, paraId) {
var icon = document.getElementById(iconId);
var panel = document.getElementById(paraId);
icon.InnerHTML = (icon.InnerHTML == "[+]") ? "[-]" : "[+]";
panel.style.display = ((panel.style.display == "") ? "none" : "");
}
</script>
</head>
<body>
<label id="icon001" for="paragraph001" onclick='toggle("icon001", "paragraph001");'>[+]</label>标题
<div id="paragraph001" style="display:none;">
段落...
</div>
</body>
</html>
<body>
标题旁边是一个[-]标签,点击后,被隐藏的段落被展开,标签变为[-],
再次点击[-]标签后,展开的段落被隐藏,
以下是代码,可是运行的时候,点击标签,段落可以实现收放,可是那个标签却完全没有改变,请问是什么原因呢?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script language="javascript" type="text/javascript">
function toggle(iconId, paraId) {
var icon = document.getElementById(iconId);
var panel = document.getElementById(paraId);
icon.InnerHTML = (icon.InnerHTML == "[+]") ? "[-]" : "[+]";
panel.style.display = ((panel.style.display == "") ? "none" : "");
}
</script>
</head>
<body>
<label id="icon001" for="paragraph001" onclick='toggle("icon001", "paragraph001");'>[+]</label>标题
<div id="paragraph001" style="display:none;">
段落...
</div>
</body>
</html>
<body>
function toggle(iconId, paraId) {
var icon = document.getElementById(iconId);
var panel = document.getElementById(paraId);
var bv=myBrowser();
if(bv=="IE")
{
icon.innerText = (icon.innerText == "[+]") ? "[-]" : "[+]";
}
if(bv=="FF")
{
icon.textContent = (icon.textContent == "[+]") ? "[-]" : "[+]";
}
panel.style.display = ((panel.style.display == "") ? "none" : "");
}
function myBrowser() {
var userAgent = navigator.userAgent;
if (userAgent.indexOf("Firefox") > -1) {
return "FF";
}
if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1) {
return "IE";
}
//Other Browser...
}