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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script style="javascript/text">
function hiddendiv(){
//mydiv为你要隐藏的div的id
document.getElementById("mydiv").style.display='none';
}
function showdiv(){
//mydiv为你要显示的div的id
document.getElementById("mydiv").style.display='';
}
</script>
</HEAD>
<BODY>
<button onclick="hiddendiv()" >隐藏DIV</button>
<button onclick="showdiv()" >显示DIV</button>
<div id="mydiv">这是一个DIV</div>
</BODY>
</HTML>
document.getElementById('div的id').style.display = 'none';