1.html代码如下
<div id="panel">
<div id="div1"></div>
<div id="div2"></div>
<a name="div3Anchor"> </a>
<div id="div3"></div>
</div>
2.js滚动div到div3
panel = document.getElementById("panel");
div3 = document.getElementById("div3");
panel.scrollTop = div3.offsetTop;
3.js平滑滚动div到div3,滚动到居中的位置
var panel = $("#panel");
var div3 = document.getElementById("div3");
panel.animate({
scrollTop:div3.offsetTop - panel.height()/2
},200);