You need to add parameter allowScriptAccess=always
in your html page. Something like this:
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" >
<param name="movie" value="your_movie_path.swf">
<param name="AllowScriptAccess" value="always">
<embed type="application/x-shockwave-flash"
href="your_movie_path.swf"
AllowScriptAccess="always" >
</embed>
</object>