Getting a embeded SWF to scale?

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Flash

So I've put my swf into my site however if I zoom in with the browser the object box keeps its width and height but the embeded SWF shrinks. How do I make it so that it keeps with the zoom scale?

<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" WIDTH="900" HEIGHT="500" id="Yourfilename" ALIGN="">
         <PARAM NAME=movie VALUE="Main.swf">
         <PARAM NAME=quality VALUE=high>
         <PARAM NAME=bgcolor VALUE=#fffced>
         <EMBED src="Main.swf" quality=high bgcolor=#fffced WIDTH="900" HEIGHT="500" NAME="Yourfilename" ALIGN="" TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED></OBJECT>