关于添加所见所得编辑器，请教

请问这段代码要把发帖改为HTMLEDIT该如何修改呢？

代码:

$header<br>
$banner
<SCRIPT language=JavaScript>

function insertstr(str)
{
	document.postForm.brief.value=document.postForm.brief.value+str;
}
function btn_q()
{
 txt=prompt("引用内容:","文字");     
 if(txt!=null)
 {
  AddTxt="



	
";
  insertstr(AddTxt);
 }	        
}
function btn_email()
{
 txt=prompt("Email:","@");     
 if(txt!=null)
 {
  AddTxt=""+txt;
  insertstr(AddTxt);
  AddTxt="";
  insertstr(AddTxt);
 }	        
}
function btn_url()
{
 txt=prompt("URL:","http://");     
 if(txt!=null)
 {
  AddTxt=""+txt;
  insertstr(AddTxt);
  AddTxt="";
  insertstr(AddTxt);
 }	        
}
function btn_swf()
{
 txt=prompt("Flash动画的URL地址:","http://");    
 if(txt!=null)
 {            
  AddTxt="[swf width=450 height=280]"+txt;
  insertstr(AddTxt);
  AddTxt="[/swf]";
  insertstr(AddTxt);
 }	
}
function btn_img()
{
 txt=prompt("图片的URL地址:","http://");    
 if(txt!=null)
 {            
  AddTxt=""+txt;
  insertstr(AddTxt);
  AddTxt="";
  insertstr(AddTxt);
 }	
}
function showcolor(color)
{
 txt=prompt("文字颜色:"+color,"文字");
 if(txt!=null)
 {
  AddTxt="[color="+color+"]"+txt;
  insertstr(AddTxt);        
  AddTxt="[/color]";
  insertstr(AddTxt);
  } 
 }
function btn_i()
{
 txt=prompt("斜体文字:","斜体字");     
 if (txt!=null)
 {
  AddTxt=""+txt;
  insertstr(AddTxt);
  AddTxt="";
  insertstr(AddTxt);
 }	        
}
function btn_u()
{
 txt=prompt("下划线文字:","下划线文字");     
 if (txt!=null)
 {
  AddTxt=""+txt;
  insertstr(AddTxt);
  AddTxt="";
  insertstr(AddTxt);
 }	        
}
function btn_b()
{
 txt=prompt("粗体文字:","粗体字");     
 if (txt!=null)
 {           
  AddTxt=""+txt;
  insertstr(AddTxt);
  AddTxt="";
  insertstr(AddTxt);
 }	        
}
function btn_code()
{
 txt=prompt("插入代码:","在此填写代码");     
 if (txt!=null)
 {           
  AddTxt="


	
代码:
	
"+txt;
  insertstr(AddTxt);
  AddTxt="
";
  insertstr(AddTxt);
 }	        
}
</SCRIPT>
<script language=javascript>
ie = (document.all)? true:false
if (ie){
function ctlent(eventobject){if(event.ctrlKey && window.event.keyCode==13){this.document.postForm.submit();}}
}

function submitonce(theform){
//if IE 4+ or NS 6+
if (document.all||document.getElementById){
//screen thru every element in the form, and hunt down "submit" and "reset"
for (i=0;i<theform.length;i++){
var tempobj=theform.elements
if(tempobj.type.toLowerCase()=="submit"||tempobj.type.toLowerCase()=="reset")
//disable em
tempobj.disabled=true
}
}
}
</script>

<div align="center">
  <center>
<table border="0"  width="760" align="center">
  <tr>
    <td width="23%" valign="top">$adminMenu</td>
    <td width="77%">
    
    <center>
<table  bgcolor =#006699 cellspacing=1 cellpadding=3 width=95%>
<tr bgcolor =#006699>
<td colspan = 2 align=center><font color =white>新增/修改文章</font></td>
</tr>

<tr bgcolor=#ffffff
<td>
<form action="admin.php?modules=edit" method="POST" name="postForm" enctype="multipart/form-data">
<td align=right>编号：</td>

<td><input type=text name=id size=15 value="$id" style='color:#000000; border:0px; background-color: #ffffff' readonly></td>
</tr>

<tr bgcolor=#efefef>
<td align=right>提交者：</td>
<td><input type=text name=username size=15 value=$curUser style='color:#000000; border:0px; background-color:#efefef' readonly></td> 
</tr>

<tr bgcolor=#ffffff>
<td align=right>文章标题：</td>
<td><input type=text name=name size=30 value=$aSoft->name></td>
</tr>

<tr bgcolor=#efefef>
<td align=right>更新日期：</td>

<td><input type=text name=date size=20 value=$date></td>
</tr>

<tr bgcolor=#efefef>
<td align=right>文章作者：</td>
<td><input type=text name=empower size=20 value=$aSoft->empower></td>
</tr>

<tr bgcolor=#efefef>
<td align=right>推荐程度：</td>
<td><select size=1 name=grade>
$grade                
</select></td>
</tr>

<tr bgcolor=#ffffff>
<td align=right>出处：</td>
<td><input type=text name=homepage size=50 value=$aSoft->homepage></td>
</tr>

<tr bgcolor=#efefef>
<td align=right>原文连接：</td>
<td><input type=text name=demo size=50 value=$aSoft->demo></td>
</tr>

<tr bgcolor=#ffffff>
<td align=right>图片地址：</td>
<td><input type=text name=img size=50 value=$aSoft->img></td>
</tr>

<tr bgcolor=#efefef>
<td align=right>文章分类：</td>
<td><select size=1 name=sort2id>$category</select></td>
</tr>

<tr bgcolor=#ffffff>
<td align=right>是否推荐：</td>
<td>$comment</td>
</tr>

<tr bgcolor=#efefef>
<td align=right>是否显示：</td>
<td>$canshow</td>
</tr>

<tr bgcolor=#ffffff>
<td align=right>关键字：</td>
<td><input type=text name=keywords size=20 value=$aSoft->keywords></td>
</tr>
<tr bgcolor=#efefef>
<td width=131 valign=top valign=top align=right>文章内容：
<br><br>(
<font color=red>HTML不支持</font>
<br><br>
<font color=green>PTB编码支持</font>)
</td>
<td>
<img  align=absBottom alt="插入粗体字" onclick=btn_b() src="{$this->tplPath}/images/post/bold.gif"  width="23" height="22">
<img  align=absBottom alt="插入斜体字" onclick=btn_i() src="{$this->tplPath}/images/post/italicize.gif"  width="23" height="22">
<img  align=absBottom alt="下划线文字" onclick=btn_u() src="{$this->tplPath}/images/post/underline.gif"  width="23" height="22">
<img  align=absBottom alt="插入超级链接" onclick=btn_url()  src="{$this->tplPath}/images/post/url.gif"  width="23" height="22">
<img  align=absBottom alt="插入图片" onclick=btn_img() src="{$this->tplPath}/images/post/img.gif"  width="23" height="22">
<img  align=absBottom alt="插入Flash动画" onclick=btn_swf() src="{$this->tplPath}/images/post/flash.gif"  width="23" height="22">
<img  align=absBottom alt=插入email onclick=btn_email() src="{$this->tplPath}/images/post/email2.gif"  width="23" height="22">
<img  align=absBottom alt=插入引用内容 onclick=btn_q() src="{$this->tplPath}/images/post/quote2.gif"  width="23" height="22">
<img  align=absBottom alt=插入代码 onclick=btn_code() src="{$this->tplPath}/images/post/code.gif"  width="23" height="22">
<SELECT  class="input5" name=color 
      onchange=showcolor(this.options[this.selectedIndex].value)> <OPTION 
        selected style="COLOR: #cc0099" value=#cc0099>◆深紫◆</OPTION> <OPTION 
        style="COLOR: #009933" value=#009933>◆深绿◆</OPTION> <OPTION 
        style="COLOR: #ff9900" value=#ff9900>◆棕色◆</OPTION> <OPTION 
        style="COLOR: #00cc99" value=#00cc99>◆叶绿◆</OPTION> <OPTION 
        style="COLOR: #ff9999" value=#ff9999>◆粉红◆</OPTION> <OPTION 
        style="COLOR: #cc0066" value=#cc0066>◆深红◆</OPTION> <OPTION 
        style="COLOR: #33ccff" value=#33aaff>◆天蓝◆</OPTION> <OPTION 
        style="COLOR: #330099" value=#330099>◆深蓝◆</OPTION> <OPTION 
        style="COLOR: #333333" value=#333333>◆深灰◆</OPTION></SELECT> 
<br>
<textarea rows=20 name=brief cols=90>$brief</textarea>
</td>
</tr>

<tr bgcolor=#efefef>
<td width=492 colspan=2 align=center>
<input type=submit value=提交 name={$sendname}>
<input type=reset value=重填></td>
</form>
</tr>
</table>
</center>
    
    </td>
  </tr>
</table>
  </center>
</div>