<!DOCTYPE html>
<html>
<head>
<title>Javascript中点击事件方法三</title>
<script type="text/javascript">
var a =123;
var fn =eval(a);
alert(a);
function test(){
alert("hello world");
}
</script>
</head>
<body>
<button id="btn" onclick="test()">click</button>
</body>
</html>
靠没看见最关键的一句
if (navigator.appName == ‘Netscape‘)
下面写的代码是错误的，直接删掉
table 里面的systel="DISPLAY:none" 修改成DISPLAY:show或者hide
includefile 里面的js文件经过断点调试
obj.visibility 在谷歌浏览器里面获取不到参数
function clikker(islast,block,arrow,srcimg)
{ //点
var lastone
if (islast==1)
{lastone=true;}
else
{lastone=false;};
if (navigator.appName == ‘Netscape‘)
{
var obj,imgobj1,imgobj2
obj=eval(block);
imgobj1=eval(arrow);
imgobj2=eval(srcimg);
if (obj.visibility==‘hide‘)
{
obj.visibility=‘show‘;
if (lastone)
{
imgobj1.src=‘images/t_minul.gif‘;
}
else
{
imgobj1.src=‘images/t_minu.gif‘;
};
//imgobj2.src=‘images/t_folder.gif‘;
imgobj2.className=‘icon-folder-close‘;
}
else
{
obj.visibility=‘hide‘;
if (lastone)
{
imgobj1.src=‘images/t_plusl.gif‘;
}
else
{
imgobj1.src=‘images/t_plus.gif‘;
};
//imgobj2.src=‘images/t_open.gif‘;
imgobj2.className=‘icon-folder-open‘;
};
}
else
垃圾中的垃圾，算了都侮辱垃圾这个词语。
原文：https://www.cnblogs.com/landv/p/11119717.html