var browser="unknown";
var os="unknown";
var detail_user_agent;

detail_user_agent=navigator.appVersion.split(";");

if ((navigator.appVersion.indexOf("Macintosh")!=-1) || (navigator.appVersion.indexOf("Mac_PowerPC")!=-1))
{
	os="mac";
}

if ((navigator.appName.indexOf("Netscape")!=-1) && (parseFloat(navigator.appVersion)<5))
{
	browser="netscape4-";
}

if (navigator.appName.indexOf("Microsoft")!=-1)
{
	browser="ie";
}

if ((browser=="ie") && (os=="mac"))
{
	browser="ie_mac";
}