function back() {
	window.history.back();
}

var flashinstalled = 0;
var flashversion = 0;
MSDetect = "false";
var LinuxDetect = 0;
if (navigator.userAgent.indexOf('Linux') > 0)
	LinuxDetect = 1;

if (navigator.plugins && navigator.plugins.length) {
	x = navigator.plugins["Shockwave Flash"];
	if (x) {
		flashinstalled = 2;
		if (x.description) {
			y = x.description;
			flashversion = y.charAt(y.indexOf('.') - 1);
		}
	} else
		flashinstalled = 1;
		
	if (navigator.plugins["Shockwave Flash 2.0"]) {
		flashinstalled = 2;
		flashversion = 2;
	}
} else {
	if (navigator.mimeTypes && navigator.mimeTypes.length) {
		x = navigator.mimeTypes['application/x-shockwave-flash'];
		if (x && x.enabledPlugin)
			flashinstalled = 2;
		else
			flashinstalled = 1;
	} else
		MSDetect = "true";
}