<HTML> <HEAD> <TITLE> New Document </TITLE> <script> var iBound = true; function hid(){ var aEL = document.getElementById('oDiv').getElementsByTagName("*"); if(iBound){
for(var i = 0;i<aEL.length;i++){ aEL[i].style.display="none"; } iBound = false; }else{ for(var i = 0;i<aEL.length;i++){ aEL[i].style.display="block"; } iBound = true; }
var num=0;
if(num==0){
$("divname").hide();
num=1;
}else{
$("divname").show();
num=0;
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title></head><body>
<textarea cols="100" rows="20" id="code"></textarea>
<div id="container">aaaaa</div>
<input type="button" onclick="cc()">
<script type="text/javascript">function cc(){
var a=document.getElementById("container")
//alert(a.style.display)
if(a.style.display=="none"){
a.style.display=""
}else{
a.style.display="none"
}}</script></body>
</html>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<script>
var iBound = true;
function hid(){
var aEL = document.getElementById('oDiv').getElementsByTagName("*");
if(iBound){
for(var i = 0;i<aEL.length;i++){
aEL[i].style.display="none";
}
iBound = false;
}else{
for(var i = 0;i<aEL.length;i++){
aEL[i].style.display="block";
}
iBound = true;
}
}
</script>
</HEAD> <BODY> <div id="oDiv" style="background-Color='red'">sss
<INPUT TYPE="text" NAME="aa">
<TEXTAREA NAME="aa" ROWS="5" COLS="5">
</TEXTAREA> </div> <INPUT TYPE="button" value=' hidden ' onclick="hid()">
</BODY>
</HTML>
var zp1dis=true;
var zp1str="";
function nn(){
if(zp1dis){
zp1dis=false;
zp1str=zp1.innerHTML;
zp1.innerHTML="";
}else{
zp1dis=true;
zp1.innerHTML=zp1str;
}
}zp1是你的div的id然后,你随便建立一个button设定onclick=nn()