大家帮我看看为什么这段代码在firefox下不能运行??
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content=
"HTML Tidy for Windows (vers 13 May 2007), see www.w3.org" />
<meta http-equiv="Content-Type" content=
"text/html; charset=us-ascii" />
<title>title</title>
<script language="javascript" type="text/javascript">
function Bold()
{
window.frames['edit'].document .selection.createRange().execCommand("Bold",false,null);
}
function TOHTML()
{
window.document.getElementById('preview').innerText =window.frames['edit'].document.body.innerHTML;
}
function FromHTML()
{
if (window.document.getElementById('preview').innerText !='')
{
window.frames['edit'].document.body .innerText = '';
window.frames['edit'].document.write(window.document.getElementById('preview').innerText);
}
}
</script>
</head>
<body>
<form>
<iframe src="" name="edit" id="edit" frameborder="1" width=
"495" height="295" marginWidth="0" marginHeight="0"></iframe>
<textarea src="" name="preview" id="preview" width="800"
height="400" rows="7" cols="69">
</textarea> <script language="javascript" type="text/javascript">
window.frames["edit"].document.designMode="On";
window.frames["edit"].document.contentEditable = true;
</script>
<button onclick="Bold();">Bold</button>
<button onclick="TOHTML();">Page To HTML </button>
<button onclick="FromHTML();">HTML To Page</button>
</form>
</body>
</html>
=====================================================================
是一个编辑器,在IE下可以运行,但是在Firefox下运行总是有问题,不知道是怎么回事?
哪位高手帮忙看一下?谢谢.