图片按钮的显隐变化，变化的过程非常美妙，极酷

- 中国WEB开发者网络 (http://www.webasp.net)
-- 网页特效 (http://www.webasp.net/javascript/)
--- 图片按钮的显隐变化，变化的过程非常美妙，极酷 (http://www.webasp.net/javascript/1/588.htm)
-- 发布日期： 2005-06-21
<!-- 网页特效代码由[中国WEB开发者网络:http://www.ChinaWebDev.com]提供！ -->
<!-- 要实现此效果需要 1 个步骤： -->

<!-- 第 1 步： -->
<!-- 把下面的代码加到<BODY></BODY>区域中： -->

<script type="text/javascript">
//Generate transition CSS (transition=0 to 23)
document.write('<STYLE TYPE="text/css">.imgTrans{ filter:revealTrans(duration=0.4,transition=12) }</STYLE>');

//Uncomment the next line for fading rollovers instead of dissolving:
//document.write('<STYLE TYPE="text/css">.imgTrans{ filter:blendTrans(duration=0.4) }</STYLE>');

var onImages=new Array();
function Rollover(imgName, imgSrc)
{
onImages[imgName] = new Image();
onImages[imgName].src = imgSrc;
}

function turnOn(imgName){
if(document.images[imgName].filters != null)
document.images[imgName].filters[0].apply();
document.images[imgName].offSrc = document.images[imgName].src;
document.images[imgName].src = onImages[imgName].src;
if(document.images[imgName].filters != null)
document.images[imgName].filters[0].play();
}

function turnOff(imgName){
if(document.images[imgName].filters != null)
document.images[imgName].filters[0].stop();
document.images[imgName].src = document.images[imgName].offSrc;
}

//Specify name of participating images, plus paths to their onMouseover replacements:
Rollover("home", "../images/588/home_on.gif");
Rollover("about", "../images/588/about_on.gif");
Rollover("scripts", "../images/588/scripts_on.gif");

</script>
<a href = "http://www.webasp.net"
onMouseOver="turnOn('home');"
onMouseOut="turnOff('home');"><img name="home" class="imgTrans"
src="../images/588/home_off.gif" border="0"></a><br>

<a href = "http://www.webasp.net"
onMouseOver="turnOn('about');"
onMouseOut="turnOff('about');"><img name="about" class="imgTrans"
src="../images/588/about_off.gif" border="0"></a><br>

<a href = "http://www.webasp.net"
onMouseOver="turnOn('scripts');"
onMouseOut="turnOff('scripts');"><img name="scripts" class="imgTrans"
src="../images/588/scripts_off.gif" border="0"></a><br>

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