Passing parameters..?

Check out this code:

on (release) {
getURL("javascript:openNewWindow(My.swf’,New window,‘height=600,width=800,toolbar=no,scrollbars=yes,resizable=yes,fullscreen=no’) ");
}

everything here is fine. It opens finely.

But…

i want to pass parameters where if i click a button in html page My.swf should open a particular scene called ‘Scene 2’ rather than scene 1.

i tried

on (release) {
getURL("javascript:openNewWindow(My.swf?myparams=Scene 1,‘New window’,‘height=600,width=800,toolbar=no,scrollbars=yes,resizable=yes,fullscreen=no’) ");
}

but its not working

so any idea for this or if it has to be done by you, how would you do it?

Pls Help

Thanks in advance