browser = "nn3";
mac = false;
if(document.getElementById) browser = "nn6";
if(document.all) browser = "ie";
if(document.layers) browser = "nn";
if(navigator.userAgent.toLowerCase().indexOf("mac")) mac = true;
if(navigator.userAgent.toLowerCase().indexOf("ppc")) mac = true;
if(navigator.userAgent.toLowerCase().indexOf("powerpc")) mac = true;
document.write("<script language=\"JavaScript1.2\" src=\""+browser+".js\"></script>");