获取兼容性的滚动scrollTOP-LEFT值

<script>
function scrollTo(){
if (window.pageYOffset!=null) {
return {
left:window.pageXOffset,
top:window.pageYOffset
}
}else if (document.compatMode==="CSS1Compat") {
return {
left:document.documentElement.scrollLeft,
top:document.documentElement.scrollTop
}
}return {
left:document.body.scrollLeft,
top:document.body.scrollTop
}
}
</script>