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.ns2 = (this.ns && (this.versionMajor == 2)); 
	this.ns3 = (this.ns && (this.versionMajor == 3)); 
	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.ie3 = (this.ie && (this.versionMajor < 4)); 
	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
	this.js = 0.0;
	if (this.ns2 || this.ie3) this.js = 1.0 
	else if (this.ns3 || this.opera || (document.images && this.ie && !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 
	
	// 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();