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js调用图片隐藏&显示实现代码

　　本文标签：js调用图片,隐藏显示

复制代码 代码如下:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>

<SCRIPT>
var intTimeStep=20;
var isIe=(window.ActiveXObject)?true:false;
var intAlphaStep=(isIe)?5:0.05;
var curSObj=null;
var curOpacity=null;
function startObjVisible(objId)
{
curSObj=document.getElementById(objId);
setObjState();
}
function setObjState(evTarget)
{
if (curSObj.style.display==""){curOpacity=1;setObjClose();}
else{
if(isIe)
{
curSObj.style.cssText=DISPLAY: none;Z-INDEX: 1; FILTER: alpha(opacity=0); POSITION: absolute;;
curSObj.filters.alpha.opacity=0;
}else
{
curSObj.style.opacity=0
}
curSObj.style.display=;
curOpacity=0;
setObjOpen();
}
}
function setObjOpen()
{
if(isIe)
{
curSObj.filters.alpha.opacity+=intAlphaStep;
if (curSObj.filters.alpha.opacity<100) setTimeout(setObjOpen(),intTimeStep);
}else{
curOpacity+=intAlphaStep;
curSObj.style.opacity =curOpacity;
if (curOpacity<1) setTimeout(setObjOpen(),intTimeStep);
}
}
function setObjClose()
{
if(isIe)
{
curSObj.filters.alpha.opacity-=intAlphaStep;
if (curSObj.filters.alpha.opacity>0) {
setTimeout(setObjClose(),intTimeStep);}
else {curSObj.style.display="none";}
}else{
curOpacity-=intAlphaStep;
if (curOpacity>0) {
curSObj.style.opacity =curOpacity;
setTimeout(setObjClose(),intTimeStep);}
else {curSObj.style.display=none;}
}
}
</SCRIPT>
</head>
<body>

<input type=text onclick="startObjVisible(objDiv);if(this.value==){this.value=}else{this.value=}" value="">
<DIV id="objDiv" style="DISPLAY: none;"><img src="红背心平台/images/城市.jpg"></DIV>

</body>
</html>