代码预览器代码：
<meta http-equiv='Content-Type' content='text/html; charset=gb2312'>
<SCRIPT>
function runEx(){
var winEx2 = window.open("", "winEx2",""); winEx2.document.open("text/html", "replace");
winEx2.document.write(unescape(event.srcElement.parentElement.children[0].value));
winEx2.document.close();
}
function saveFile()
{
var win=window.open('','','top=10000,left=10000');
win.document.write(document.all.asdf.innerText)
win.document.execCommand('SaveAs','','copy.htm')
win.close();
</SCRIPT>
<SCRIPT language=JavaScript>
<!--
function MM_goToURL() { //v3.0
var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
function JM_cc(ob){
var obj=MM_findObj(ob); if (obj) {
obj.select();js=obj.createTextRange();js.execCommand("Copy");}
function MM_findObj(n, d) { //v4.0
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && document.getElementById) x=document.getElementById(n); return x;
//-->
</head>
<BODY leftMargin=0 topMargin=0>
<TABLE cellSpacing=0 width="100%" border=0 background="images/lgb.gif" height="1" style="border-collapse: collapse" bordercolor="#111111" cellpadding="0">
<TR>
<TD height="1">
<FORM action="" method=post name=form1>
<TEXTAREA id=asdf name=textfield rows=25 cols="91"></TEXTAREA>
<BR>
<INPUT name=Button type=button value=预览效果 style="background-color: #FFFFFF">
<INPUT name=Button onclick=asdf.select() type=button value=全选代码 style="background-color: #FFFFFF">
<INPUT name=Button onclick="asdf.value=''" type=button value=清空代码 style="background-color: #FFFFFF">
<INPUT name=Button onclick="JM_cc('textfield')" type=button value=复制代码 style="background-color: #FFFFFF">
<INPUT type=button value=保存代码 style="background-color: #FFFFFF">
<INPUT a href="#" onclick="window.open('http://www.mlhd.org/myblog')" type=button value=特效首页 style="background-color: #FFFFFF"></a>
<INPUT onclick="self.close()"< /font> type=button value=关闭窗口 style="background-color: #FFFFFF"></DIV> </TD></TR>
</table>
</body>
</html>
本文转自 yeybz 51CTO博客，原文链接:http://blog.51cto.com/hmlwl/1168090
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