1.绝对位置用这两个函数取得
function getL(e){
var l=e.offsetLeft;
while(e=e.offsetParent){
l+=e.offsetLeft;
}
return l
}
function getT(e){
var t=e.offsetTop;
while(e=e.offsetParent){
t+=e.offsetTop;
}
return t
}
宽:offsetWidth,高:offsetHeight
2.onresize
<script>
function window.onresize(){
alert()
}
</script>