// Ultimate client-side JavaScript client sniff. Version 4.01
// based upon: Ultimate client-side JavaScript client sniff. Version 3.03
// (C) Netscape Communications 1999-2001.  Permission granted to reuse and distribute.

function Is ()
{	// convert all characters to lowercase to simplify testing
	var agt=window.navigator.userAgent.toLowerCase();

	// *** browser version ***
	// note: On IE5, these return 4, so use is.ie5up to detect IE5
	// or is.ie6up to detect IE6.

	if(navigator.appversion) {
		this.major = parseInt(navigator.appversion);
		this.minor = parseFloat(navigator.appversion);
	} else {
		this.major = this.minor = 0;
	}
		
	// Note Opera can be set to pretend that it is another browser (MSIE6 by default)
	this.opera = (agt.indexOf("opera") != -1);
	if(window.opera) // if the user agent has had opera deleted this will detect opera.
		this.opera = true;
	this.opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
	this.opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
	this.opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
	this.opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
	this.opera5up = (this.opera && !this.opera2 && !this.opera3 && !this.opera4);
	this.opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1);
	this.opera6up = (this.opera6 || this.opera5up);
	this.opera8 = (agt.indexOf("opera 8") != -1 || agt.indexOf("opera/8") != -1);
	this.opera85 = (agt.indexOf("opera 8.5") != -1 || agt.indexOf("opera/8.5") != -1);
	this.opera8up = (this.opera8 || this.opera6up);
	// At the time of writing opera 9 was in beta
	this.opera9 = (agt.indexOf("opera 9") != -1 || agt.indexOf("opera/9") != -1);

	// note: opera and webtv spoof navigator.  we do strict client detection.
	// if you want to allow spoofing, take out the tests for opera and webtv.
	this.moz	 = ((agt.indexOf('mozilla') != -1) && (agt.indexOf('spoofer')==-1)
					&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
					&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
	this.moz2	= (this.moz && (this.major == 2));
	this.moz3	= (this.moz && (this.major == 3));
	this.moz4	= (this.moz && (this.major == 4));
	this.moz4up = (this.moz && (this.major >= 4));
	this.moz5	= (this.moz && (this.major == 5));
	this.moz5up = (this.moz && (this.major >= 5));
	this.gecko	= (agt.indexOf('gecko') != -1);

	this.nav2	= this.moz2;
	this.nav3	= this.moz3;
	this.nav4	= this.moz4;
	this.nav4up = (this.nav4 || ((this.major >= 4) && (agt.indexOf("netscape") != -1)));
	this.nav	   = (this.nav2 || this.nav3 || this.nav4);
	this.nav6	= (this.moz && (this.major == 5) && (agt.indexOf("netscape6/6") != -1));
	this.nav6up = (this.moz && (this.major >= 5) && (agt.indexOf("netscape") != -1));
	this.nav7	= (this.moz && (this.major == 5) && (agt.indexOf("netscape/7") != -1));
	this.nav7up = (this.nav6up && !this.nav6);
	this.navonly = (this.nav && ((agt.indexOf(";nav") != -1) || (agt.indexOf("; nav") != -1)) );

	this.mozilla  = (this.moz && this.gecko);
	this.mozilla1 = (this.moz && this.gecko && (agt.indexOf("rv:1") != -1));

	this.ie	  = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
	this.ie3	 = (this.ie && (this.major < 4));
	this.ie4	 = (this.ie && (this.major == 4) && (agt.indexOf("msie 4") != -1) );
	this.ie4up	= (this.ie && (this.major >= 4));
	this.ie5	 = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.0") != -1) );
	this.ie5_5	= (this.ie && (this.major == 4) && (agt.indexOf("msie 5.5") != -1));
	this.ie5up	= (this.ie && !this.ie3 && !this.ie4);
	this.ie5_5up = (this.ie && !this.ie3 && !this.ie4 && !this.ie5);
	this.ie6	 = (this.ie && (this.major == 4) && (agt.indexOf("msie 6.") != -1) );
	this.ie6up	= (this.ie && !this.ie3 && !this.ie4 && !this.ie5 && !this.ie5_5);
	this.ie7	 = (this.ie && (this.major == 4) && (agt.indexOf("msie 7.") != -1) );
	this.ie7up	= (this.ie && !this.ie3 && !this.ie4 && !this.ie5 && !this.ie5_5 && !this.ie6);

	this.msn	= (this.ie4up && (agt.indexOf("msn") != -1));
	this.msn2_5 = (this.msn && (agt.indexOf("msn 2.5") != -1));
	this.msn2_6 = (this.msn && (agt.indexOf("msn 2.6") != -1));

	this.aol	  = (agt.indexOf("aol") != -1);
	this.aol3	 = (this.aol && this.ie3);
	this.aol4ie3  = (this.aol && this.ie3);
	this.aol4ie4  = (this.aol && this.ie4);
	this.aol4	 = (this.aol4ie3 || this.aol4ie4);
	this.aol5	 = (agt.indexOf("aol 5") != -1);
	this.aol6	 = (agt.indexOf("aol 6") != -1);
	this.aol7	 = ((agt.indexOf("aol 7") != -1) || agt.indexOf("aol/7") != -1);
	this.aol8	 = ((agt.indexOf("aol 8") != -1) || agt.indexOf("aol/8") != -1);

	

	this.webtv = (agt.indexOf("webtv") != -1); 

	this.TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
	this.AOLTV = this.TVNavigator;

	this.hotjava = (agt.indexOf("hotjava") != -1);
	this.hotjava3 = (this.hotjava && (this.major == 3));
	this.hotjava3up = (this.hotjava && (this.major >= 3));

	// *** JAVASCRIPT VERSION CHECK ***
	if (this.nav2 || this.ie3) this.js = 1.0;
	else if (this.nav3) this.js = 1.1;
	else if (this.opera8up) this.js = 1.5;
	else if (this.opera5up) this.js = 1.3;
	else if (this.opera) this.js = 1.1;
	else if ((this.nav4 && (this.minor <= 4.05)) || this.ie4) this.js = 1.2;
	else if ((this.nav4 && (this.minor > 4.05)) || this.ie5) this.js = 1.3;
	else if (this.hotjava3up) this.js = 1.4;
	else if (this.nav6 || this.gecko) this.js = 1.5;
	// NOTE: In the future, update this code when newer versions of JS
	// are released. For now, we try to provide some upward compatibility
	// so that future versions of Nav and IE will show they are at
	// *least* JS 1.x capable. Always check for JS version compatibility
	// with > or >=.
	else if (this.nav6up) this.js = 1.5;
	// note ie5up on mac is 1.4
	 else if (this.ie6up) this.js = 1.4;
	else if (this.ie5up) this.js = 1.4;

	// HACK: no idea for other browsers; always check for JS version with > or >=
	// Have assumed version 1.0, If the browser dosen't support js then how will you access the variable?
	else this.js = 1.0;

	// *************************************************
	// *** PLATFORM ************************************
	// *************************************************
	this.win	= ( (agt.indexOf("win") != -1) || (agt.indexOf("16bit") != -1) );
	// NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all
	//		Win32, so you can't distinguish between Win95 and WinNT.
	this.win95 = ((agt.indexOf("win95") != -1) || (agt.indexOf("windows 95") != -1));

	// is this a 16 bit compiled version?
	this.win16 = ((agt.indexOf("win16") != -1) || 
				(agt.indexOf("16bit") != -1) || (agt.indexOf("windows 3.1") != -1) || 
				(agt.indexOf("windows 16-bit") != -1) );  

	this.win31 = ((agt.indexOf("windows 3.1") != -1) || (agt.indexOf("win16") != -1) ||
					(agt.indexOf("windows 16-bit") != -1));

	// NOTE: Reliable detection of Win98 may not be possible. It appears that:
	//		- On Nav 4.x and before you'll get plain "Windows" in userAgent.
	//		- On Mercury client, the 32-bit version will return "Win98", but
	//		 the 16-bit version running on Win98 will still return "Win95".
	this.win98 = ((agt.indexOf("win98") != -1) || (agt.indexOf("windows 98") != -1));
	this.winnt = ((agt.indexOf("winnt") != -1) || (agt.indexOf("windows nt") != -1));
	this.win32 = (this.win95 || this.winnt || this.win98 || 
					((this.major >= 4) && (navigator.platform == "Win32")) ||
					(agt.indexOf("win32") != -1) || (agt.indexOf("32bit") != -1));

	this.winme = ((agt.indexOf("win 9x 4.90") != -1));
	this.win2k = ((agt.indexOf("windows nt 5.0") != -1) || (agt.indexOf("windows 2000") != -1));
	this.winxp = ((agt.indexOf("windows nt 5.1") != -1) || (agt.indexOf("windows xp") != -1));
	this.win2k3 = ((agt.indexOf("windows nt 5.2")!= -1) || (agt.indexOf("windows 2003") != -1));
	// obsolete: Windows.NET was renamed to Windows 2003
	this.windotnet = this.win2k3;

	this.dotnet = ((agt.indexOf(".net clr") != -1));

	this.os2	= ((agt.indexOf("os/2") != -1) || 
					(navigator.appVersion.indexOf("OS/2") != -1) ||	
					(agt.indexOf("ibm-webexplorer") != -1));

	this.mac	= (agt.indexOf("mac") != -1);
	// hack ie5 js version for mac
	if (this.mac && this.ie5up) this.js = 1.4;
	this.mac68k = (this.mac && ((agt.indexOf("68k") != -1) || 
								(agt.indexOf("68000") != -1)));
	this.macppc = (this.mac && ((agt.indexOf("ppc") != -1) || 
								(agt.indexOf("powerpc") != -1)));
	// macos detection not a real science, too little info in ua
	this.macos  = (this.mac && ((agt.indexOf("mac os") != -1) ||
								(agt.indexOf("macos") != -1) ||
								this.ie));
	this.macos8 = (this.macos && ((agt.indexOf("os 8") != -1) ||
								  (agt.indexOf("os8") != -1)));
	// ie5.13 reports as ie5.12 on os x
	this.macos9 = ((this.mac && (this.ie5 && (agt.indexOf("msie 5.13") != -1))) ||
					(this.macos && ((agt.indexOf("os 9") != -1) ||
									(agt.indexOf("os9") != -1))));
	this.macosx = (this.macos && ((agt.indexOf("os x") != -1) ||
								  (agt.indexOf("osx") != -1)));

	this.sun	  = (agt.indexOf("sunos") != -1);
	this.sun4  = (agt.indexOf("sunos 4") != -1);
	this.sun5  = (agt.indexOf("sunos 5") != -1);
	this.suni86= (this.sun && (agt.indexOf("i86") != -1));
	this.irix  = (agt.indexOf("irix") != -1);	// SGI
	this.irix5 = (agt.indexOf("irix 5") != -1);
	this.irix6 = ((agt.indexOf("irix 6") != -1) || (agt.indexOf("irix6") != -1));
	this.hpux  = (agt.indexOf("hp-ux") != -1);
	this.hpux9 = (this.hpux && (agt.indexOf("09.") != -1));
	this.hpux10= (this.hpux && (agt.indexOf("10.") != -1));
	this.aix	  = (agt.indexOf("aix") != -1);	  // IBM
	this.aix1  = (agt.indexOf("aix 1") != -1);	
	this.aix2  = (agt.indexOf("aix 2") != -1);	
	this.aix3  = (agt.indexOf("aix 3") != -1);	
	this.aix4  = (agt.indexOf("aix 4") != -1);	
	this.linux = (agt.indexOf("inux") != -1);
	this.sco	  = (agt.indexOf("sco") != -1) || (agt.indexOf("unix_sv") != -1);
	this.unixware = (agt.indexOf("unix_system_v") != -1); 
	this.mpras = (agt.indexOf("ncr") != -1); 
	this.reliant  = (agt.indexOf("reliantunix") != -1);
	this.dec   = ((agt.indexOf("dec") != -1) || (agt.indexOf("osf1") != -1) || 
				  (agt.indexOf("dec_alpha") != -1) || (agt.indexOf("alphaserver") != -1) || 
				  (agt.indexOf("ultrix") != -1) || (agt.indexOf("alphastation") != -1)); 
	this.sinix = (agt.indexOf("sinix") != -1);
	this.freebsd = (agt.indexOf("freebsd") != -1);
	this.bsd   = (agt.indexOf("bsd") != -1);
	// hack macos if not linux or bsd
	this.macos = (this.macos || (!this.linux && !this.bsd));
	this.unix  = ((agt.indexOf("x11") != -1) || this.sun || this.irix || this.hpux || 
				 this.sco ||this.unixware || this.mpras || this.reliant || 
				 this.dec || this.sinix || this.aix || this.linux || this.bsd || this.freebsd);

	this.vms	= ((agt.indexOf("vax") != -1) || (agt.indexOf("openvms") != -1));
}

var is;
var isIE3Mac = false;
// this section is designed specifically for IE3 for the Mac

if ((navigator.appVersion.indexOf("Mac") != -1) && (navigator.userAgent.indexOf("MSIE") != -1) && (parseInt(navigator.appVersion)==3))
		isIE3Mac = true;
else	
	is = new Is();