为什么这个总是找不到对象?

虫二二 2009-12-30 02:47:15

[code=JavaScript]
<head>
<script type="text/javascript">
var speed=30;

var layer=document.getElementById("layer");
var layer1=document.getElementById("layer1");
var layer2=document.getElementById("layer2");

alert(layer2);
layer2.innerHTML=layer1.innerHTML;

//滑动函数
var Marquee=function(){
//当滚动至colee1与colee2交界时
if(layer2.offsetTop-layer.scrollTop<=0){
leyer.scrollTop-=layer1.offsetHeight;
}
else{
layer.scrollTop++;
}
}
</script>
</head>
<body>
<div id="layer" style="overflow:hidden;width:280px;height:180px">
<div id="layer1">
<p><img alt="" src="../../Images/1.jpg" /></p>
<p><img alt="" src="../../Images/2.jpg" /></p>
<p><img alt="" src="../../Images/3.jpg" /></p>
<p><img alt="" src="../../Images/4.jpg" /></p>
<p><img alt="" src="../../Images/5.jpg" /></p>
</div>
<div id="layer2">layer2</div>
</div>
</body>
[/code]

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虫二二 2009-12-30

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[Quote=引用 2 楼 lihui_shine 的回复:]
将JS放在HTML代码后面
HTML code<head></head><body><divid="layer" style="overflow:hidden;width:280px;height:180px"><divid="layer1"><p><imgalt="" src="../../Images/1.jpg"/></p><p><imgalt="" src="../../Images/2.jpg"/></p><p><imgalt="" src="../../Images/3.jpg"/></p><p><imgalt="" src="../../Images/4.jpg"/></p><p><imgalt="" src="../../Images/5.jpg"/></p></div><divid="layer2">layer2</div></div><scripttype="text/javascript">var speed=30;var layer=document.getElementById("layer");var layer1=document.getElementById("layer1");var layer2=document.getElementById("layer2");

alert(layer2);
layer2.innerHTML=layer1.innerHTML;//滑动函数var Marquee=function(){//当滚动至colee1与colee2交界时if(layer2.offsetTop-layer.scrollTop<=0){
leyer.scrollTop-=layer1.offsetHeight;
}else{
layer.scrollTop++;
}
}</script></body>
[/Quote]

呵呵，的确，我在还没写完就遇到了这个问题，汗死了

浪尖赏花 2009-12-30

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LZ的代码好象还差点嘛^_^

<head> 



</head> 

<body> 

<div id="layer" style="overflow:hidden;width:280px;height:180px"> 

<div id="layer1"> 

<p> <img alt="" src="../../Images/1.jpg" /> </p> 

<p> <img alt="" src="../../Images/2.jpg" /> </p> 

<p> <img alt="" src="../../Images/3.jpg" /> </p> 

<p> <img alt="" src="../../Images/4.jpg" /> </p> 

<p> <img alt="" src="../../Images/5.jpg" /> </p> 

</div> 

<div id="layer2">layer2 </div> 

</div> 

<script type="text/javascript"> 

var speed=30; 



var layer=document.getElementById("layer"); 

var layer1=document.getElementById("layer1"); 

var layer2=document.getElementById("layer2"); 



layer2.innerHTML=layer1.innerHTML; 



//滑动函数 

var Marquee=function(){ 

//当滚动至colee1与colee2交界时 

if(layer2.offsetTop-layer.scrollTop <=0){ 

  layer.scrollTop-=layer1.offsetHeight;  

} 

else{ 

  layer.scrollTop++; 

} 

} 

var MyMar=setInterval(Marquee,speed);

layer.onmouseover=function() {clearInterval(MyMar);};//鼠标移上时清除定时器达到滚动停止的目的

layer.onmouseout=function() {MyMar=setInterval(Marquee,speed);};//鼠标移开时重设定时器

</script> 

</body>

浪尖赏花 2009-12-30

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将JS放在HTML代码后面

<head> 



</head> 

<body> 

<div id="layer" style="overflow:hidden;width:280px;height:180px"> 

<div id="layer1"> 

<p> <img alt="" src="../../Images/1.jpg" /> </p> 

<p> <img alt="" src="../../Images/2.jpg" /> </p> 

<p> <img alt="" src="../../Images/3.jpg" /> </p> 

<p> <img alt="" src="../../Images/4.jpg" /> </p> 

<p> <img alt="" src="../../Images/5.jpg" /> </p> 

</div> 

<div id="layer2">layer2 </div> 

</div> 

<script type="text/javascript"> 

var speed=30; 



var layer=document.getElementById("layer"); 

var layer1=document.getElementById("layer1"); 

var layer2=document.getElementById("layer2"); 



alert(layer2); 

layer2.innerHTML=layer1.innerHTML; 



//滑动函数 

var Marquee=function(){ 

//当滚动至colee1与colee2交界时 

if(layer2.offsetTop-layer.scrollTop <=0){ 

  leyer.scrollTop-=layer1.offsetHeight;  

} 

else{ 

  layer.scrollTop++; 

} 

} 

</script> 

</body>

虫二二 2009-12-30

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<head>

<script type="text/javascript">

var speed=30;



var layer=document.getElementById("layer");

var layer1=document.getElementById("layer1");

var layer2=document.getElementById("layer2");



alert(layer2);

layer2.innerHTML=layer1.innerHTML;



//滑动函数

var Marquee=function(){

//当滚动至colee1与colee2交界时

if(layer2.offsetTop-layer.scrollTop<=0){

  leyer.scrollTop-=layer1.offsetHeight;  

}

else{

  layer.scrollTop++;

}

}

</script>

</head>

<body>

<div id="layer" style="overflow:hidden;width:280px;height:180px">

<div id="layer1">

<p><img alt="" src="../../Images/1.jpg" /></p>

<p><img alt="" src="../../Images/2.jpg" /></p>

<p><img alt="" src="../../Images/3.jpg" /></p>

<p><img alt="" src="../../Images/4.jpg" /></p>

<p><img alt="" src="../../Images/5.jpg" /></p>

</div>

<div id="layer2">layer2</div>

</div>

</body>