function checkBrowser() {
	var appname = navigator.appName;
	var ua = navigator.userAgent;
	if(appname == "Microsoft Internet Explorer"){
		var appver = navigator.appVersion;
		if (appver.indexOf("Mac")>= 0) {
			
			return true;
		} else {
			var p = appver.indexOf("MSIE",0);
			if(p >= 0){
				var p2 = appver.indexOf(";",p);
				if(p2 >= 0){
				var iever = appver.substring(p + 5, p2);
					if(iever < 6){
						return true;
					}
				}
			}
		}
		
	}
	return false;
}
var cantUse = checkBrowser();
if (cantUse) location.replace("error.html");