鼠标感应渐显图片

鼠标感应渐显图片

下面为效果显示

img1:10

img2:10

脚本说明:
把如下代码加入<body>区域中

<script language="JavaScript1.2"> 
function makevisible(cur,which){ 
if (which==0) 
cur.filters.alpha.opacity=100 
else 
cur.filters.alpha.opacity=20 
} 
</script>
<script language="javascript">
var min=10;
var max=100;
var number=1;
function OnMouseOver(obj)
{
  if(obj.changing)
    clearInterval(obj.changing);
  obj.changing=setInterval("add("+obj.id+")",10);
}
function OnMouseOut(obj)
{
  if(obj.changing)
    clearInterval(obj.changing);
  obj.changing=setInterval("sub("+obj.id+")",10);
}
function add(obj)
{
  if(obj.filters.Alpha.Opacity > max)
  {
    clearInterval(obj.changing);
    obj.changing=false;
    obj.filters.Alpha.Opacity = max;
  }
  else
    obj.filters.Alpha.Opacity += number;
  test1.innerText = "img1:"+img1.filters.Alpha.Opacity;
  test2.innerText = "img2:"+img2.filters.Alpha.Opacity;
}
function sub(obj)
{
  if(obj.filters.Alpha.Opacity < min)
  {
    clearInterval(obj.changing);
    obj.changing=false;
    obj.filters.Alpha.Opacity = min;
  }
  else
    obj.filters.Alpha.Opacity += -number;
  test1.innerText = "img1:"+img1.filters.Alpha.Opacity;
  test2.innerText = "img2:"+img2.filters.Alpha.Opacity;
}
</script>
<img id='img1' src="photo2.jpg" style="filter:Alpha(Opacity=10)" onmouseover="OnMouseOver(this)" onmouseout="OnMouseOut(this)">
<img id='img2' src="photo1.jpg" style="filter:Alpha(Opacity=10)" onmouseover="OnMouseOver(this)" onmouseout="OnMouseOut(this)">
<div id='test1'>img1:10</div>
<div id='test2'>img2:10</div>