//initialize
var mBrowser = new browser();

//browser: creates a new browser object
function browser() { 	//generic combination of both browserNS and browserIE
	var sAppName = navigator.appName;
	var sAppVersion = parseInt(navigator.appVersion);
	var sUA = navigator.userAgent.toLowerCase();

	this.isWin = false;
	this.isMac = false;
	this.isIE = false
	this.isIE4 = false;
	this.isIE5 = false;
	this.isIE55 = false;
	this.isIE5plus = false;
	this.isIE6 = false;
	this.isIE6plus = false;
	this.isNS = false;
	this.isNS4 = false;
	this.isNS6 = false;
	this.isNS6plus = false;
	this.isNotSupported = false;
	this.styleObj = "";
	this.col1 = "";
	
	//Identify unsupported browser versions (< 4)
	this.isNotSupported = (sAppVersion < 4);

	//Determine platform
	this.isWin = (sUA.indexOf("win")>=1); 
	this.isMac = (sUA.indexOf("mac")>=1); 

	if (sAppName == "Microsoft Internet Explorer") {
		this.isIE = true;

		//create references for x-browser object references
		this.col1 = "all.";
		this.styleObj = ".style";
		this.isIE4 = (sUA.indexOf("msie 4.")>=1);
		this.isIE5 = (sUA.indexOf("msie 5.0")>=1);
		this.isIE55 = (sUA.indexOf("msie 5.5")>=1);
		this.isIE6 = (sUA.indexOf("msie 6")>=1);
		if (this.isIE5 || this.isIE55 || this.isIE6) {
			this.isIE5plus = true;
			this.isIE4 = false;
		}
		if (this.isIE6) this.isIE6plus = true;
	} 
	else if (sAppName == "Netscape") {
		this.isNS = true;
		if (sAppVersion == 4) this.isNS4 = true;
		if (sAppVersion == 5) {
			this.isNS6 = true;
			this.isNS6plus = true;
		}
		document.captureEvents(Event.CLICK);
	}
}