代码预览器 <html> <head> <title>代码预览器</title> <meta http-equiv=Content-Type content="text/html; charset=gb2312"> <script language=JavaScript> var currentpos,timer; function initialize() { timer=setInterval("scrollwindow()",50); } function sc() { clearInterval(timer); } function scrollwindow() { currentpos=document.body.scrollTop; window.scroll(0,++currentpos); if (currentpos != document.body.scrollTop) sc(); } document.onmousedown=sc document.ondblclick=initialize </script>   </head>   <body>   <h1 align="center">代码预览器</h1> <hr SIZE=1>   <p align="center"><textarea id="p" onfocus="this.select()" onKeyDown="submitCode()" name="p" rows="30" cols="100"></textarea></p> <p [...]