This is much simpler than ExternalInterface if you are looking for simple mouse detection on all SWF.
Just tweak the <object>or tag <embed>that embeds SWF through Javascript.
document.getElementById ("content-banner"). onmouseover = over;
function over (evt)
{
alert ("moused over");
}
http://jsfiddle.net/p7YkA/
user1385191