How to change size for embeddable tag ?

Hi everybody,

I am looking for how change the embedded tag size for sharing possibility :

Tag only for sharing , not the player !

how to remplace <object width="425" height="350" type="application/x-shockwave-flash" /.....

by <object width="300" height="250" type="application/x-shockwave-flash" /.....

??

Thanks

No answer ?

It's seems not so difficult ...

Support ?

Thanks