Flash script causing page load event to fire twice

[manywolf]

I have an aspx page that fires the page load event twice for every load. I tried every fix that was suggested in all the posts on this and other forums. None changed the behavior. After one post that suggested they had an img tag with src="", I decided to look for instances of "src" and one by one start removing that code to see if it changed anything. Below is the one that, when I removed it, although it broke the flash menus and header, solved the problem and my page load event only fires once without it and my code behind logic works properly now.

The problem is that I need the code I had to remove to fix the page load problem. So does anyone have any idea why this would cause my page load event to fire twice? See script below

Thanks for any help you can offer

<script>
AC_FL_RunContent( "codebase","http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0","width",""+topbar_wi dth+"","height",""+topbar_height+"","src","_menu/topbar","quality","high","pluginspage","http://www.macromedia.com/go/getflashplayer","movie","_menu/topbar" ); //end AC code
</script>