Bence çok kullanışlı umarım işinize yarar
<CENTER><h2>HTML KOD ÖNİZLEME</h2></CENTER>
<P>
<center><br />
<br />
<form action="http://rota.tr.gg">
<input type="submit" value="rota" /><br />
<br />
</form>
<P>
<div align="center">
<table style="width:400px;border:solid 1px #959492;background:#ebebea">
<tr><td valign="top">
<form name="form1" method="post">
<textarea name="code" wrap="soft" onclick="focus(this.code)" style="border:solid 1px #b9b8b6;padding:5px;width:230px;height:500px;scroll:auto;">
HTML KODLARINI DENEMEK İÇİN KODLARI BURAYA KOPYALA/YAPIŞTIR METODUYLA KODLARIN ÖN İZLEMESİNİ YAPABİLİRSİNİZ... rota.tr.gg
</textarea>
</form>
</td><td valign="top">
<iframe src="about:blank" name="preview" style="height:500px;width:230px;border:solid 1px #b9b8b6;background:#ffffff" frameborder="0">
</iframe>
</td>
</tr>
</table>
<button onclick="preview.document.write (document.getElementsByTagName ('TEXTAREA')[0].value); preview.document.close(); preview.focus()">ÖNİZLE</button>
<button onclick="window.document.form1.code.value='';preview.document.write (document.getElementsByTagName ('TEXTAREA')[0].value); preview.document.close(); preview.focus()">TEMİZLE</button>
<button onclick="window.location.href=window.location.href">YENİLE</button>
</div>
<P>
<center><br />
<br />
<form action="http://rota.tr.gg">
<input type="submit" value="rota" /><br />
<br />
</form>
