/*self.onresize = function (){
if (document.layers) history.go (0);
};*/ 

self.onload=preloadImages;

function Is(){
var agent = navigator.userAgent.toLowerCase();
this.major = parseInt(navigator.appVersion);
this.minor = parseFloat(navigator.appVersion);
this.ns = ((agent.indexOf('mozilla')!= -1) && ((agent.indexOf('spoofer')== -1) && (agent.indexOf('compatible')== -1)));
//this.ns4 = (this.ns && (this.major == 4));
//this.ns6 = (this.ns && (this.major >= 5));
this.ie = (agent.indexOf("msie")!= -1);
//this.ie4 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.")== -1));
//this.ie5 = (this.ie && (this.major >= 4)&& (agent.indexOf("msie 5.")!=-1));
this.version =this.major;
if(this.ie) {
	this.version = agent.substring(agent.indexOf("msie")+5,agent.indexOf("msie")+6);
	this.version = this.version+"."+agent.substring(agent.indexOf("msie")+7,agent.indexOf("msie")+8);
	this.version=parseFloat(this.version);
}
if(this.ns) {
	this.version =parseFloat(this.minor);
}

}

function showbw() {
	ver=new Is();
	if(ver.ns){
		                     // 4.5
		if (ver.version<4.75) {
	//		alert("Hai Netscape "+ver.version+" e non va bene");//eliminare
			location.replace("/home/nobrowser.html");
			//collegamento alla pagina di aggiornamento di netscape
		}else{
	//		alert("Hai Netscape "+ver.version+" e va bene");//eliminare
		}
	}
	if(ver.ie){
		                     // 5.0
		if (ver.version<5.0){
	//		alert("Hai InternetExplorer "+ver.version+" e non va bene");//eliminare
			location.replace("/home/nobrowser.html");
			//collegamento alla pagina di aggiornamento di internet explorer
		}
		else{
	//		alert("Hai InternetExplorer "+ver.version+" e va bene");//eliminare
		}
	}
}
//showbw();