"Save as new file" when changing the corresponding input field
<tr>
<td width="50%" align="center">
<input type="hidden" name="file" value="{FILE}">
-<input type="checkbox" name="saveas" value="1"> Save as new file: {DIR} <input type=text name="newfile" value=""></td>
+<input type="checkbox" name="saveas" value="1"> Save as new file: {DIR} <input type="text" name="newfile" value="" onchange="this.form.saveas.checked=true"></td>
<td width="50%" align="center"><input type="checkbox" name="encode_iso" value="1"> Encode ISO-8859-1 special chars</td>
</tr>
<tr>