js 右下角弹窗效果代码(IE only)

右下角弹窗效果练习

function $(obj){
return document.getElementById(obj);
}
function pop(obj){
var h = parseInt($("popDiv").currentStyle.height);
$("popDiv").style.height = (h + obj) + "px";
if(parseInt($("popDiv").style.height) < 2){
window.clearInterval(timer);
$("popDiv").style.display = "none";
}
if(parseInt($("popDiv").style.height) >= 200){
window.clearInterval(timer);
}
}
var timer;
function runtimer(obj){
timer = window.setInterval(function(){pop(obj)},10);
}
window.onload = function(){
runtimer(2);
}




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