// Browser sniffing

function Is() {
	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.ns2   = (this.ns && (this.major==3));
	this.ns3   = (this.ns && (this.major==3));
	this.ns4b  = (this.ns && (this.major==4) && (this.minor <= 4.03));
	this.ns4   = (this.ns && (this.major>=4) && (this.major<5));
	this.ns6    = (this.ns && (this.major>=5));
	this.ie    = (agent.indexOf("msie")!=-1);
	this.ie3   = (this.ie && (this.major<4));
	this.ie4   = (this.ie && (this.major==4) && (agent.indexOf("msie 5.0")==-1));
	this.ie5   = (this.ie && (this.major==4) && (agent.indexOf("msie 5.0")!=-1));
	this.ie55  = (this.ie && (this.major==4) && (agent.indexOf("msie 5.5")!=-1));
	this.op3 = (agent.indexOf("opera") != -1);
	this.win   = (agent.indexOf("win")!=-1);
	this.mac   = (agent.indexOf("mac")!=-1);
	this.unix  = (agent.indexOf("x11")!=-1);
}

var is = new Is();