How to over ride a parameter value in the URL

Hi
I am calling a 10g report through a form as ...
web.show_document('/reports/rwservlet?MYKEYINCGICMDFILE'&report=stock_status','_blank');
MYKEYINCGICMDFILE is a key in cgicmd file where I have passed values like userid,destype, desname etc.
Now I want to change the destype for a specific report and I want to pass the parameter through URL, how can I override the destype value provided in the key and pass through URL?
I tried as ...
web.show_document('/reports/rwservlet?MYKEYINCGICMDFILE'||'&desformat=spreadsheet&destype=file&desname=c:\stock_check.xls&report=stock_status','_blank');
but still getting the value from the key.
Thanks

Leave out MYKEYINCGICMDFILE on the URL and specify all the parameters. That of course exposes un/pw.
Or create a second key.
Better still: use run_report_object in Forms instead of calling a report via web.show_document. This takes un/pw from the currently logged in user.

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Hi Daniel
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On this article: [article link|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap%28bd1lbizjptawmq==%29/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233313337333233323331%7D.do]
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have you ever followed on my Links ?!?!?
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� Service End Point Definition (in EJB)
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<?xml version="1.0" encoding="UTF-8"?>
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<part name="String_8" type="xsd:string"/>
<part name="String_9" type="xsd:string"/>
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<part name="int_24" type="xsd:int"/>
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Hello,
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Katherine Xiong
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