//browser check.

var platform = null;
var browser = null;
var app_ver = navigator.appVersion;
var app_name = navigator.appName;

if(app_ver.indexOf('Win') != -1)
{
	platform = "win";
}
else if(app_ver.indexOf('Mac') != -1)
{
			platform = "mac";
}
else
{
			platform="other";
}

if(app_name.indexOf('Explore')!=-1)
{
	browser = "ie";
}
else if(app_name.indexOf('Netscape')!=-1)
{
	browser = "nn";
}
else
		{
		browser = "other";
    }