Usual disclaimer; I know nothing about Flash, but maybe it'll
still work
Adobe is definately paranoid... I can't write l-o-c-a-t-i-o-n
in a post... so just remove the "-" in l-o-c-a-t-i-o-n below
In HTML:
<script type="text/javascript">
function setLocation(url){
document.l-o-c-a-t-i-o-n.href=url;
}
</script>
From what I read you need to allow script access explicitly
for this to work.
<param name="allowScriptAccess" value="always" />
In AS:
import flash.external.*;
ExternalInterface.call("setLocation","
http://www.google.com");