function BrowserCheck() {
	this.NavName = navigator.appName;
	this.NavAnt = navigator.userAgent;
	this.NavVer = navigator.appVersion;
	this.NavPlug = navigator.plugins;
	this.NavVsub = navigator.vendorSub;
	this.NavVerI = parseInt(this.NavVer);
	this.NavVerF = parseFloat(this.NavVer);

	this.NN = (this.NavName == "Netscape")
	this.NN4 = (this.NavAnt.indexOf("Mozilla/4") != -1);
	this.NN6 = (this.NavAnt.indexOf("Netscape6/") != -1);
	this.NN7 = (this.NavAnt.indexOf("Netscape/7") != -1);

	this.IE = (this.NavName == "Microsoft Internet Explorer");
	this.IE3 = (this.NavAnt.indexOf('MSIE 3')>0);
	this.IE45 = (this.NavVer.indexOf('MSIE 4.5')>0);
	this.IE401 = (this.NavVer.indexOf('MSIE 4.01')>0);
	this.IE4 = (this.NavVer.indexOf('MSIE 4')>0);
	this.IE51 = (this.NavAnt.indexOf('MSIE 5.1')>0);
	this.IE52 = (this.NavAnt.indexOf('MSIE 5.2')>0);
	this.IE5 = (this.NavVer.indexOf('MSIE 5')>0);
	this.IE6 = (this.NavVer.indexOf('MSIE 6')>0);

	this.GEK = (this.NavAnt.indexOf("Gecko") != -1);
	this.FIR = (this.NavAnt.indexOf("Firefox") != -1);
	this.SAF = (this.NavAnt.indexOf("Safari",0) != -1);
	this.CAB = (this.NavAnt.indexOf("iCab",0) != -1);
	this.OPE = (this.NavAnt.indexOf("Opera",0) != -1);

	this.Win = (this.NavAnt.indexOf("Win",0) != -1);
	this.XP = (this.NavAnt.match(/NT 5\.1|XP/));
	this.ME = (this.NavAnt.match(/4\.90|ME/));
	this.TK = (this.NavAnt.match(/NT 5\.0|2000/));
	this.NT = (this.NavAnt.match(/NT 5\.0|WinNT/));

	this.Mac = (this.NavAnt.indexOf("Mac",0) != -1);
	this.M68k = (this.NavAnt.indexOf("68k",0)!=-1);
	this.Uix = (this.NavAnt.indexOf("X11",0) != -1);



	this._flash_currentver = 10; // for future version
	this._checkflashinstalled = BrowserCheckFlashInstalled;

	this.flash6 = this._checkflashinstalled(6);
	this.flash5 = this._checkflashinstalled(5);
	this.flash4 = this._checkflashinstalled(4);
}


function BrowserCheckFlashInstalled(version) {
	if(this.Mac && this.IE4) return true;
	
	flashinstalled = 'false';
	if(this.IE && this.Win) {
		var str = "";
		for(var i=version; i<=this._flash_currentver; i++)
		{
			str += 'IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.' + version + '\"))';
			if(i!=this._flash_currentver) str += " Or ";
		}
		document.writeln('<script language=\"VBscript\">');
		document.writeln('on error resume next');
		document.writeln('flashinstalled = ' + str);
		document.writeln('<\/script>');
	/*
	} else if(
		navigator.mimeTypes["application/x-director"] != null &&
		navigator.plugins["Shockwave for Director"] != null) {
			navigator.mimeTypes["application/x-director"] != null &&
			navigator.plugins["Shockwave for Director"] != null) {
			var desc = navigator.plugins["Shockwave for Director"].description;
			if(eval(desc.charAt(desc.indexOf("version",0)+"version ".length)) >= 7) flashinstalled  = 'true';
	*/
	} else {
		for(var i=0; i<navigator.plugins.length; i++)
			if(navigator.plugins[i].name == 'Shockwave Flash')
			{
				var desc = navigator.plugins["Shockwave Flash"].description;
				if(eval(desc.charAt(desc.indexOf("Flash",0)+"Flash ".length)) >= version) flashinstalled  = 'true';
			}
	}
	return eval(flashinstalled);
}