Alcea_browser = "ie";
Alcea_mac = false;

if(document.getElementById) Alcea_browser = "NOTFOUND"; // nn6
if(document.all) Alcea_browser = "ie";
if(document.layers) Alcea_browser = "nn";
if(navigator.userAgent.toLowerCase().indexOf("mac")) Alcea_mac = true;
if(navigator.userAgent.toLowerCase().indexOf("ppc")) Alcea_mac = true;
if(navigator.userAgent.toLowerCase().indexOf("powerpc")) Alcea_mac = true;
if(navigator.userAgent.toLowerCase().indexOf("firefox")) Alcea_browser="ff";
if(navigator.userAgent.toLowerCase().indexOf("mozilla")) Alcea_browser="ff";
document.write("<script language=\"JavaScript1.2\" src=\"Alcea_"+Alcea_browser+".js\"></script>");