如何用JavaScript弹出一个从右下角渐渐上升的窗口？

Question

<script>
var w = window.open("","","left=" +( screen.width-100) + ",width=100,top=" + (screen.height-100) + ",height=100")
var tid = window.setInterval("w.moveBy(0,-10)",100)</script>

Answer 1

<SCRIPT>
var oPopup = window.createPopup();
var popTop=50;
function popmsg(msgstr){
var winstr="";
winstr+="";
winstr+="<h2 style=\"color:#000;font-size:12px;line-height:20px;width:auto;height:229px;margin:0;padding:40px 10px 10px 10px;background:#f5f5f5;border:1px #000 solid;\">"+msgstr+"</h2>";
oPopup.document.body.innerHTML = winstr;
popshow();
}
function popshow(){
window.status=popTop;
if(popTop>1720){
clearTimeout(mytime);
oPopup.hide();
return;
}else if(popTop>1520&&popTop<1720){
oPopup.show(screen.width-250,screen.height,241,1720-popTop);
}else if(popTop>1500&&popTop<1520){
oPopup.show(screen.width-250,screen.height+(popTop-1720),241,172);
}else if(popTop<180){
oPopup.show(screen.width-250,screen.height,241,popTop);
}else if(popTop<220){
oPopup.show(screen.width-250,screen.height-popTop,241,172);
}
popTop+=10;
var mytime=setTimeout("popshow();",50);
}
popmsg("欢迎来轩轩的小家串串http://baobao.ci123.com/spaces/show/532    http://blog.ci123.com/xuewaifeiling    ，您的来访将鼓励妈妈写出更多的精彩美文！愿我的博客 与您一同分享快乐，请多多指点意见和见意");</SCRIPT>

Answer 2

楼上给的这个代码在IE下面是没有问题。但在FIREFOX不行啊？？有没有在FIREFOX下面也可以运行的啊。我找好多天了