function BrowserDetectLite() {
	var agent = navigator.userAgent.toLowerCase(); 
	
	// Browser version
	this.versionMajor = parseInt(navigator.appVersion); 
	this.versionMinor = parseFloat(navigator.appVersion); 

	// Browser name
	this.ns = ((agent.indexOf('mozilla')!=-1) && (agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1) && (agent.indexOf('opera')==-1) && (agent.indexOf('webtv')==-1)); 
	this.ns4 = (this.ns && (this.versionMajor == 4)); 
	this.ns4up = (this.ns && (this.versionMajor >= 4)); 
	this.ns5 = (this.ns && (this.versionMajor == 5)); 
	this.ns5up = (this.ns && (this.versionMajor >= 5)); 
	this.ie = (agent.indexOf("msie") != -1); 
	this.ie4 = (this.ie && (this.versionMajor == 4) && (agent.indexOf("msie 5.0")==-1) ); 
	this.ie4up = (this.ie  && (this.versionMajor >= 4)); 
	this.ie5 = (this.ie && (this.versionMajor == 4) && (agent.indexOf("msie 5.0")!=-1) ); 
	this.ie5up = (this.ie  && !this.ie3 && !this.ie4); 
	this.opera = (agent.indexOf("opera") != -1); 
	
	// Javascript version
	if (this.ns2 || this.ie3) this.js = 1.0 
	else if (this.ns3 || this.opera || (document.images && !this.ie4up)) this.js = 1.1 
	else if ((this.ns4 && (this.versionMinor <= 4.05)) || this.ie4) this.js = 1.2 
	else if ((this.ns4 && (this.versionMinor > 4.05)) || this.ie5up) this.js = 1.3 
	else if (this.ns5up) js = 1.4 
	else this.js = 0.0; 
	
	// Platform type
	this.win = ( (agent.indexOf("win")!=-1) || (agent.indexOf("16bit")!=-1) );
	this.win32 = ((agent.indexOf("win95")!=-1) || (agent.indexOf("windows 95")!=-1) || (agent.indexOf("win98")!=-1) || (agent.indexOf("windows 98")!=-1) || (agent.indexOf("winnt")!=-1) || (agent.indexOf("windows nt")!=-1) || ((this.versionMajor >= 4) && (navigator.platform == "Win32")) || (agent.indexOf("win32")!=-1) || (agent.indexOf("32bit")!=-1));
	this.mac = (agent.indexOf("mac")!=-1);
}
var is = new BrowserDetectLite();