var Win=(navigator.userAgent.indexOf("Win")!=-1);
var Mac=(navigator.userAgent.indexOf("Mac")!=-1);
var Explorer=(navigator.appName.indexOf("Explorer")!=-1);
var Netscape=(navigator.appName.indexOf("Netscape")!=-1);
var Version=navigator.appVersion.charAt(0);

if
(Mac && Explorer)
{document.write('<script type="text/javascript" language="JavaScript" src="http://hmga.org/image/mm_menu_mac_ie.js"></script>');}
else
{document.write('<script type="text/javascript" language="JavaScript" src="image/mm_menu.js"></script>');}