为什么把<script>的代码都放在<head>里就没有效果了呢
<script type="text/javascript">
window.onload=function(){
var area = document.getElementById('moocBox');
var con1 = document.getElementById('con1');
var con2 = document.getElementById('con2');
var speed = 50;
area.scrollTop = 0;
con2.innerHTML = con1.innerHTML;
function scrollUp(){
if(area.scrollTop >= con1.scrollHeight) {
area.scrollTop = 0;
}else{
area.scrollTop ++;
}
}
var myScroll = setInterval("scrollUp()",speed);
area.onmouseover = function(){
clearInterval(myScroll);
}
area.onmouseout = function(){
myScroll = setInterval("scrollUp()",speed);
}
}
</script>
