problem in bbcode

[IranDelphi]

hi
i use a syntaxhighlighter for delphi language.

i use this tag for show the text in delphi syntax :

<LINK  href="1.css" type=text/css rel=stylesheet>
<SCRIPT language=javascript src="1.js"></SCRIPT>
<SCRIPT language=javascript src="2.js"></SCRIPT>

<p align="left" dir="ltr">
<textarea  name="code" class="delphi" cols="30" rows="30">
{param}
</textarea>
</p>

but after every rows , the <br> tag is shown.

you can see the exactly sample at:
http://irandelphi.ir/showpost.php?p=139&postcount=12

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please help me how can i do this.
Waitnig for your kind reply very soon.
Best Regards
Babak Ahadi