기본내장에디터 추가설치 질문입니다.

<?
include_once("./_common.php");
include_once("$g4[path]/lib/cheditor4.lib.php");
if($mode=="insert"){ echo $gpp_contents;}
?>
<script src="<?=$g4[cheditor4_path]?>/cheditor.js"></script>
<?=cheditor1('gpp_contents', '100%', '150');?>
<form method="post" action="<?=$_SERVER[PHP_SELF]?>" name="fwrite">
<input type="hidden" name="mode" value="insert">
<?=cheditor2('gpp_contents', $gpp_contents);?><input type=submit class=btn1 accesskey='s' value=' 확 인 '>
</form>
<script type='text/javascript'>
function fwrite(f){
<?=cheditor3('gpp_contents');?>
return true;
}
</script>


결과가 안넘어 옵니다 ㅠㅠ
어찌 된일일까요?

제가 뭐빼먹었나요?