[code]<!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" />
<script>
function qwer(obj){
var obj=document.getElementById(obj);
if(obj.checked){
document.getElementById("div1").innerHTML+="<li id='qwer1' style='border:1px solid #000;'>1111111111111111111111</li>";
document.getElementById("qwer1").innerHTML+="<span id='qwer2' style='border:2px solid #F00;'>2222222222222222222</span>";
}
else{
document.getElementById("qwer1").outerHTML=" ";
alert(document.getElementById("div1").innerHTML);
}
}
</script>
</head>
<body>
<input type="checkbox" name="checkbox" id="checkbox1" value="checkbox" onclick="qwer('checkbox1')" />
<br />
<br /><br /><br /><br /><br />
<ul id="div1">0000000000000000000</ul>
</body>
</html>
[/code]
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script>
function qwer(obj){
var obj=document.getElementById(obj);
if(obj.checked){
document.getElementById("div1").innerHTML+="<li id='qwer1' style='border:1px solid #000;'>1111111111111111111111</li>";
document.getElementById("qwer1").innerHTML+="<span id='qwer2' style='border:2px solid #F00;'>2222222222222222222</span>";
}
else{
document.getElementById("qwer1").outerHTML=" ";
alert(document.getElementById("div1").innerHTML);
}
}
</script>
</head>
<body>
<input type="checkbox" name="checkbox" id="checkbox1" value="checkbox" onclick="qwer('checkbox1')" />
<br />
<br /><br /><br /><br /><br />
<ul id="div1">0000000000000000000</ul>
</body>
</html>
[/code]