Add 'param' element into 'object' with jquery

Hi Experts!

Quick question:
I've got a piece of code on my blog's pages:

<object width="300" height="300">
  <param name="movie" value="http://www.youtube.com/v/_OtW1BYVvIM?version=3&amp;hl=en_US&amp;rel=0"></param>
  <param name="allowFullScreen" value="true"></param>
  <param name="allowscriptaccess" value="always"></param>
  <embed src="http://www.youtube.com/v/_OtW1BYVvIM?version=3&amp;hl=en_US&amp;rel=0" type="application/x-shockwave-flash" width="300" height="300" allowscriptaccess="always" allowfullscreen="true"></embed>
</object>

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And I want to add this piece between 'object' tags:

<param name="wmode" value="transparent">

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And I want to do it in easiest possible way, with jquery, so I don't have to search edit every single object.
How can I do this?

Thanks.