以前看过几个JS代码格式的，自己也来写了一个，呵呵，优点是可以处理超长的 JS 而不会死机.........
IE Only
运行代码框
<html><br/><head><br/><title>JSer </title><br/><meta http-equiv="content-type" content="text/html; charset=gb2312" /><br/><style><br/>/* Global CSS */<br/>* { padding:0px; margin:0px; font-size:13px; font-family: arial 宋体; }<br/>body { overflow:auto; border:0px none black; background-color:buttonface; }<br/>li { margin:0px 0px 0px 40px; padding:2px 4px; }<br/>/* Class CSS */<br/>.quote { color:#999; }<br/>.comments { color: #009090; }<br/>.indent { margin-left:25px; }<br/>.regexp { color:#F000F0; }<br/>/* Identified CSS */<br/>#divTools { height:20px; border-bottom:1px solid #555; padding-left:15px; }<br/>#divTools a { color:navy; text-decoration:none; height:20px; line-height:20px; padding:0px 25px; }<br/>#divTools a:hover { color:white; background-color:navy; text-decoration:none; height:20px; line-height:20px; }<br/>#divJSInput { display:none; width:600px; height:450px; border:2px outset buttonface; position:absolute; background-color:buttonface; z-Index:2; }<br/>#divJSInputTitle { color:white; background-color:navy; height:20px; line-height:20px; padding:0px 10px; cursor:default; }<br/>#txtJSInput { width:598px; height:406px; overflow:auto; padding:4px 8px; background-color:white;}<br/>#divJSInputBar { height:24px; padding:0px 4px; }<br/>#divJSInputBar input { width:110px; height:22px; border:1px solid #555; line-height:20px; }<br/>#divJSOutput { background-color:white; border:1px inset buttonface; width:100%; height:500px; overflow:auto; }<br/>#divWaiting { display:none; width:400px; height:60px; border:1px solid buttonface; position:absolute; background-color:#E0F0F0; z-Index:3; text-align:center; padding-top:10px; }<br/>#divWaiting input { width:140px; height:22px; border:1px solid #555; line-height:20px; cursor:default; margin-top:4px; }<br/></style><br/></head><br/><body><br/><a href="#" onclick="return(showJSInput());">Input JS</a><br/>Please Input the js:<br/><textarea id="txtJSInput">document.write('<script type="text/javascript" src="/js/flashobject.js"></scr'+'ipt>');function runCode(){if(1==arguments.length)try{event=arguments[0];};catch(e){};var code=(event.target||event.srcElement).parentNode.childNodes[0].value;var newwin=window.open('','','');newwin.opener=nullnewwin.document.write(code);newwin.document.close();};function MM_findObj(n,d){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&&d.getElementById)x=d.getElementById(n);return x;};function MM_showHideLayers(){var i,p,v,obj,args=MM_showHideLayers.arguments;for(i=0;i<(args.length-2);i+=3)if((obj=MM_findObj(args[i]))!=null){v=args[i+2];if(obj.style){obj=obj.style;v=(v=='show')?'visible':(v='hide')?'hidden':v;};obj.visibility=v;};};function ADBanner(){this.htmlcode="";this.href="";this.imgsrc="";this.imgwidth="";this.imgheight="";this.imgalt="";this.imgborder="";this.weight=1;this.place=1this.type=1;this.id=0;};function CreatBanners(aBanners,aNum){for(var i=0;i<aNum;i++){aBanners[i]=new ADBanner();};};function showbanner(aPlace,aType,aBannerID){var amount=ADBanners.length;var includeList=new Array(amount);if(!document.usedBanners){document.usedBanners=new Array(amount);for(var i=0;i<amount;i++)document.usedBanners[i]=-1;};var usedList=document.usedBanners;if(arguments.length==2){var j=0;var sum=0;for(var i=0;i<amount;i++){if(ADBanners[i].place==aPlace&&ADBanners[i].type==aType){if(usedList[i]!=i){includeList[j]=i;j++;sum=sum+ADBanners[i].weight;};};};if(sum<=0)return ;var rndNum=Math.round(Math.random()*sum);i=0;j=0;while(true){j=j+ADBanners[includeList[i]].weight;if(j>=rndNum)break;i++;};i=includeList[i];};else {if(aBannerID>=0&&aBannerID<amount)i=aBannerID;else return ;};usedList[i]=i;if(ADBanners[i].htmlcode=="")document.write('<A HREF="'+ADBanners[i].href+'" target=_blank><img SRC="'+ADBanners[i].imgsrc+'" WIDTH="'+ADBanners[i].imgwidth+'" HEIGHT="'+ADBanners[i].imgheight+'" ALT="'+ADBanners[i].imgalt+'" BORDER="'+ADBanners[i].imgborder+'"></A>');else document.write(ADBanners[i].htmlcode);document.write('<script src=/common/jsbanner/redirect.asp?action=visit&id='+ADBanners[i].id+' ></s'+'cript>')};var ADBanners=new Array();CreatBanners(ADBanners,9);ADBanners[0].htmlcode='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0" width="533" height="104"><param name=movie value="http://gg.blueidea.com/2005/www/533-104.swf"><PARAM NAME=wmode VALUE=opaque><param name=quality value=autolow><embed src="http://gg.blueidea.com/2005/www/533-104.swf" quality=autolow pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="533" height="104"></embed> </object>';ADBanners[0].weight=10;ADBanners[0].place=2;ADBanners[0].type=2;ADBanners[0].id=38;ADBanners[1].imgsrc="http://gg.blueidea.com/2006/chinaok/208x32.gif";ADBanners[1].href="http://www.chinaok.net.cn";ADBanners[1].imgwidth="208";ADBanners[1].imgheight="32";ADBanners[1].imgalt="";ADBanners[1].weight=10;ADBanners[1].place=4;ADBanners[1].type=4;ADBanners[1].id=42;ADBanners[2].htmlcode='<script type="text/javascript">google_ad_client = "pub-5841412030047197";google_alternate_color = "CCCCD4";google_ad_width = 728;google_ad_height = 90;google_ad_format = "728x90_as";google_ad_channel ="7977407778";google_ad_type = "text_image";google_color_border = "6699CC";google_color_bg = "003366";google_color_link = "FFFFFF";google_color_url = "AECCEB";google_color_text = "AECCEB";</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>';ADBanners[2].weight=20;ADBanners[2].place=6;ADBanners[2].type=6;ADBanners[2].id=46;ADBanners[3].htmlcode='<A target=_blank href=http://www.mydeskcity.com/2006dvd/index.htm><b><font color=red>经典桌面2006年DVD资源光盘</font></b></a><br><a href=http://www.jietusoft.com/case_tw.html target=_blank><b>三维全景漫游欣赏</b></a><br><A href=http://ale.2006.163.com/blog target=_blank><font color=red>世界杯话题，邀你一起畅谈</font></A>';ADBanners[3].weight=10;ADBanners[3].place=10;ADBanners[3].type=7;ADBanners[3].id=52;ADBanners[4].imgsrc="http://gg.blueidea.com/2006/chinaok/468x60.gif";ADBanners[4].href="http://www.chinaok.net.cn";ADBanners[4].imgwidth="468";ADBanners[4].imgheight="60";ADBanners[4].imgalt="";ADBanners[4].weight=30;ADBanners[4].place=5;ADBanners[4].type=5;ADBanners[4].id=56;ADBanners[5].imgsrc="http://gg.blueidea.com/2006/now/208x32.gif";ADBanners[5].href="http://www.now.cn";ADBanners[5].imgwidth="208";ADBanners[5].imgheight="32";ADBanners[5].imgalt="";ADBanners[5].weight=20;ADBanners[5].place=4;ADBanners[5].type=4;ADBanners[5].id=41;ADBanners[6].htmlcode='<script type="text/javascript">google_ad_client = "pub-5841412030047197";google_ad_width = 728;google_ad_height = 90;google_alternate_ad_url = "http://www.blueidea.com/js/google_adsense_script.html";google_ad_format = "728x90_as";google_ad_channel ="7977407778";google_ad_type = "text_image";google_color_border = "6699CC";google_color_bg = "003366";google_color_link = "FFFFFF";google_color_url = "AECCEB";google_color_text = "AECCEB";</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script><br><br>';ADBanners[6].weight=10;ADBanners[6].place=1;ADBanners[6].type=1;ADBanners[6].id=29;ADBanners[7].htmlcode='<a href=http://blogbeta.blueidea.com target=_blank><b>BlogBeta</b></a> <a href=http://www.idc2008.com target=_blank><b><font color=red>厦门数字引擎全新送出三线路空间</font></b></a> <span id="bxna">BXNA 小帖士</span><script type="text/javascript">var vp = new FlashObject("http://blog.blueidea.com/bxna/styles/mxna/bxna.swf?clr=#484848&dy=-2&showmode=1", "dp", "169", "13", "7", "#FFFFFF");vp.addParam("wmode", "transparent"); vp.write("bxna");</script>';ADBanners[7].weight=10;ADBanners[7].place=7;ADBanners[7].type=7;ADBanners[7].id=50;ADBanners[8].htmlcode='<table border="0" align="center" cellpadding="0" cellspacing="0" height="40" bgcolor="#FFFFFF"><tr><td><a href=http://www.blueidea.com/game/site/2006dengfeng target=_blank><img src=http://gg.blueidea.com/2006/blueidea/d2.gif border=0></a></td><td width="6"></td><td><a href="http://61.136.58.111/ad/click.php?pid=622&url=forum.visionunion.com/vuevent/kingsoft/index.htm" target="_blank"><img src="http://gg.blueidea.com/2006/kingsoft/380.gif" alt="" border="0" /></a></td></tr></table>';ADBanners[8].weight=10;ADBanners[8].place=9;ADBanners[8].type=6;ADBanners[8].id=57;Processing...