var browser ;
var vers = navigator.appVersion;

if(navigator.appName.indexOf('Microsoft') != -1){
	browser = 'Microsoft Internet Explorer';
}else
if(navigator.userAgent.indexOf('Opera') != -1){
	browser = 'Opera';
}else
if(navigator.appName.indexOf('Netscape') != -1){
	browser = 'Netscape Navigator';
}

if (vers < '4'){
	window.location="sorry.htm";
}