如何取得当前窗口滚动条的坐标?

Question

document.getElementById('ID').scrollTop试下，可以不？

Answer 1

IE可以，你试下火狐
<Textarea id="textarea1" style=width:200;height:200>
asdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\nasdsd\n
</textarea>
<input name=haha type=button value="按" onclick=alert(document.getElementById("textarea1").scrollTop)>