/* global variables for browser detection */

var is_ns = false /* netscape 4.x */
if (parseInt(navigator.appVersion) >= 4)
{
	if (navigator.appName == "Netscape")
	{
		is_ns = true;
	}
}
var is_ie = false /* MS Internet Explorer 4.x+ */
if (navigator.userAgent.indexOf('MSIE 4') != -1 )
{
	is_ie = true;
}

var is_ie5 = false /* MS Internet Explorer 5.x+ */
if (navigator.userAgent.indexOf('MSIE 5') != -1)
{
	is_ie5 = true;
}

var is_mac = false /* is the client OS Mac oS? */
if ((navigator.userAgent.indexOf('Mac') != -1) || (navigator.userAgent.indexOf('mac') != -1))
{
	is_mac = true;
}