高校问答奥奇传说葫芦大乱斗:javascript问题：鼠标感应图片渐显
来源：百度文库 编辑：高校问答 时间：2024/05/02 19:20:00
我感觉下面这段代码是对的呀？可是为什么运行不起来呢？请问高手，错在哪了？谢谢！
<HTML>
<head>
<script language="javascript1.2">
function makevisible(cur,which)
{
if (which=0)
cur.filters.alpha.opacity=100
else
cur.filters.alpha.opacity=20
}
</script>
</head>
<body>
<img src="123.gif"
style="filter:alpha(opacity=20)"
onMouseover="makevisible(this,0)"
onMouseout="makevisible(this,1)">
</body>
<HTML>
<head>
<script language="javascript1.2">
function makevisible(cur,which)
{
if (which=0)
cur.filters.alpha.opacity=100
else
cur.filters.alpha.opacity=20
}
</script>
</head>
<body>
<img src="123.gif"
style="filter:alpha(opacity=20)"
onMouseover="makevisible(this,0)"
onMouseout="makevisible(this,1)">
</body>
if (which==0)