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After I past the source below at WikiText mode of FCKEditor, 

<syntaxhighlight lang="php">
<?php
    $v = "string";    // sample initialization
?>
html text
<?
    echo $v;         // end of php code
?>
</syntaxhighlight>

then I switch to Rich Text mode, everything just changed to:

<div style="text-align: left" dir="ltr" class="mw-geshi"><div class="php source-php"><pre class="de1">&nbsp;
<span class="kw2">&lt;?php</span>
 <span class="re0">$v</span> <span class="sy0">=</span> <span class="st0">"string"</span><span class="sy0">;</span> <span class="co1">// sample initialization</span>
<span class="sy1">?&gt;</span>
html text
<span class="sy1">&lt;?</span>
 <span class="kw1">echo</span> <span class="re0">$v</span><span class="sy0">;</span> <span class="co1">// end of php code</span>
<span class="sy1">?&gt;</span></pre></div></div>

Although it brings a nicely looking dot-lined box, but it does not have any high-lighted color, and the code turns into a big bunch of mess.

Is there any way to add the box, preserve the highlight color, and the code just remain as it is?