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<html>
<head>
function loadOther(){
if(document.getElementById('2')){
var o3 = document.createElement('div');
o3.id = '3';
o3.innerHTML = '111'
document.body.appendChild(o3);
var o4 = document.createElement('div');
o4.id = '4';
o4.innerHTML = '222'
document.body.appendChild(o4);
}else setTimeout(loadOther,1000);
}
window.onload = loadOther;
</head>
<body>
<div id="1"> 111 </div>
<div id="2"> 222 </div>
</body>
</html>
<body onload="show()">
<div id="combox1">
<div id="1"> 111 </div>
<div id="2"> 222 </div>
</div>
<div id="combox2" style="display:none">
<!--等待几秒,等上面加载好了再加载下面的 -->
<div id="3"> 333 </div>
<div id="4"> 444 </div>
</div>
<script language=javascript>
function show()
{
setTimeout("initCombox2()",3000)
}
function initCombox2()
{
document.getElementById("combox2").style.display=""
}
</script>