// Ultimate client-side JavaScript client sniff.
// (C) Netscape Communications 1999.  Permission granted to reuse and distribute.
// Revised 17 May 99 to add is_nav5up and is_ie5up (see below).

// Everything you always wanted to know about your JavaScript client
// but were afraid to ask. Creates "is_" variables indicating:
// (1) browser vendor:
//     is_nav, is_ie, is_opera
// (2) browser version number:
//     is_major (integer indicating major version number: 2, 3, 4 ...)
//     is_minor (float   indicating full  version number: 2.02, 3.01, 4.04 ...)
// (3) browser vendor AND major version number
//     is_nav2, is_nav3, is_nav4, is_nav4up, is_nav5, is_nav5up, is_ie3, is_ie4, is_ie4up
// (4) JavaScript version number:
//     is_js (float indicating full JavaScript version number: 1, 1.1, 1.2 ...)
// (5) OS platform and version:
//     is_win, is_win16, is_win32, is_win31, is_win95, is_winnt, is_win98
//     is_os2
//     is_mac, is_mac68k, is_macppc
//     is_unix
//        is_sun, is_sun4, is_sun5, is_suni86
//        is_irix, is_irix5, is_irix6
//        is_hpux, is_hpux9, is_hpux10
//        is_aix, is_aix1, is_aix2, is_aix3, is_aix4
//        is_linux, is_sco, is_unixware, is_mpras, is_reliant
//        is_dec, is_sinix, is_freebsd, is_bsd
//     is_vms
//
// See http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html and
// http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html
// for detailed lists of userAgent strings.
//
// Note: you don't want your Nav4 or IE4 code to "turn off" or
// stop working when Nav5 and IE5 (or later) are released, so
// in conditional code forks, use is_nav4up ("Nav4 or greater")
// and is_ie4up ("IE4 or greater") instead of is_nav4 or is_ie4
// to check version in code which you want to work on future
// versions.

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

// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

// 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.
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
&& (agt.indexOf('webtv')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
(agt.indexOf("; nav") != -1)) );
var is_nav5 = (is_nav && (is_major == 5));
var is_nav5up = (is_nav && (is_major >= 5));

var is_ie   = (agt.indexOf("msie") != -1);
var is_ie3  = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")==-1) );
var is_ie4up  = (is_ie  && (is_major >= 4));
var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);

// KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
// or if this is the first browser window opened.  Thus the
// variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);

var is_opera = (agt.indexOf("opera") != -1);
var is_webtv = (agt.indexOf("webtv") != -1);

// *** JAVASCRIPT VERSION CHECK ***
var is_js;
if (is_nav2 || is_ie3) is_js = 1.0
else if (is_nav3 || is_opera) is_js = 1.1
else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2
else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3
else if (is_nav5) is_js = 1.4
// 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 (is_nav && (is_major > 5)) is_js = 1.4
else if (is_ie && (is_major > 5)) is_js = 1.3
// HACK: no idea for other browsers; always check for JS version with > or >=
else is_js = 0.0;

// *** PLATFORM ***
var is_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.
var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));

// is this a 16 bit compiled version?
var is_win16 = ((agt.indexOf("win16")!=-1) ||
(agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) ||
(agt.indexOf("windows 16-bit")!=-1) );

var is_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".
var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
var is_win32 = (is_win95 || is_winnt || is_win98 ||
((is_major >= 4) && (navigator.platform == "Win32")) ||
(agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));

var is_os2   = ((agt.indexOf("os/2")!=-1) ||
(navigator.appVersion.indexOf("OS/2")!=-1) ||
(agt.indexOf("ibm-webexplorer")!=-1));

var is_mac    = (agt.indexOf("mac")!=-1);
var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) ||
(agt.indexOf("68000")!=-1)));
var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) ||
(agt.indexOf("powerpc")!=-1)));

var is_sun   = (agt.indexOf("sunos")!=-1);
var is_sun4  = (agt.indexOf("sunos 4")!=-1);
var is_sun5  = (agt.indexOf("sunos 5")!=-1);
var is_suni86= (is_sun && (agt.indexOf("i86")!=-1));
var is_irix  = (agt.indexOf("irix") !=-1);    // SGI
var is_irix5 = (agt.indexOf("irix 5") !=-1);
var is_irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1));
var is_hpux  = (agt.indexOf("hp-ux")!=-1);
var is_hpux9 = (is_hpux && (agt.indexOf("09.")!=-1));
var is_hpux10= (is_hpux && (agt.indexOf("10.")!=-1));
var is_aix   = (agt.indexOf("aix") !=-1);      // IBM
var is_aix1  = (agt.indexOf("aix 1") !=-1);
var is_aix2  = (agt.indexOf("aix 2") !=-1);
var is_aix3  = (agt.indexOf("aix 3") !=-1);
var is_aix4  = (agt.indexOf("aix 4") !=-1);
var is_linux = (agt.indexOf("inux")!=-1);
var is_sco   = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1);
var is_unixware = (agt.indexOf("unix_system_v")!=-1);
var is_mpras    = (agt.indexOf("ncr")!=-1);
var is_reliant  = (agt.indexOf("reliantunix")!=-1);
var is_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));
var is_sinix = (agt.indexOf("sinix")!=-1);
var is_freebsd = (agt.indexOf("freebsd")!=-1);
var is_bsd = (agt.indexOf("bsd")!=-1);
var is_unix  = ((agt.indexOf("x11")!=-1) || is_sun || is_irix || is_hpux ||
is_sco ||is_unixware || is_mpras || is_reliant ||
is_dec || is_sinix || is_aix || is_linux || is_bsd || is_freebsd);

var is_vms   = ((agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1));

//  Checking for Safari running on Mac OS X   --  JVLS (1.19.05)
var is_safari = (agt.indexOf("safari") != -1);

//*************************************************************************************

 var currentItem = '';
 var sub1;
 var sub2;
 var sub3;
 var sub4;
 var sub5;

 var menuOnImages;
 var menuOffImages;
 var menuItems;
 var imgLookup;

 var NAV1_IMAGE_ON = 'nav_whoweare.gif';
 var NAV2_IMAGE_ON = 'nav_clients.gif';
 var NAV3_IMAGE_ON = 'nav_solutions.gif';
 var NAV4_IMAGE_ON = 'nav_services.gif';
 var NAV5_IMAGE_ON = 'nav_support.gif';

 var NAV1_IMAGE_OFF = 'nav_whoweare.gif';
 var NAV2_IMAGE_OFF = 'nav_clients.gif';
 var NAV3_IMAGE_OFF = 'nav_solutions.gif';
 var NAV4_IMAGE_OFF = 'nav_services.gif';
 var NAV5_IMAGE_OFF = 'nav_support.gif';

 var imagePrefix = '/resources/images/';
 var _loaded = 0;


if (document.all)
 {
 // IE 4+
	browser="IE4";
	objPrefix = "document.all.";
	objSuffix = "";
	sourcePrefix = ".src=\"";
	sourceSuffix = "\"";
 }
 else if(document.getElementById)
 {
 // NS 6
	browser = "NS6";
	objPrefix = "document.getElementById(\"";
	objSuffix = "\")";
	sourcePrefix = ".setAttribute(\"src\", \"";
	sourceSuffix = "\")";
 }
 else if(document.layers)
 {
 // NS
	browser="NS";
	objPrefix = "document.";
	objSuffix = "";
	sourcePrefix = ".src=\"";
	sourceSuffix = "\"";
 }
 else
 {
 // NS
	browser="NOTHING";
	objPrefix = "";
	objSuffix = "";
	sourcePrefix = "";
	sourceSuffix = "";
 }

 function activateTopImage(imgNum)
 {
	if (browser != "NOTHING")
	{

	eval(objPrefix + "mtiTopImg" + imgNum + objSuffix + sourcePrefix + topMenuImagesOn[imgNum].src + sourceSuffix);
	}
 }
 function deactivateTopImage(imgNum)
 {
	if (browser != "NOTHING")
	{
	eval(objPrefix + "mtiTopImg" + imgNum + objSuffix + sourcePrefix + topMenuImagesOff[imgNum].src + sourceSuffix);
	}
 }
 
 function hideObj(_thisobj, _thisnavimg) {
	if(_loaded == 1) {
		if(_thisobj != 'all') {
			if(is_nav4) {
				_thisobj.visibility = 'hidden';
			} else {
				_thisobj.style.visibility = 'hidden';
			}
		} else {
			if(is_nav4) {
				sub1.visibility = 'hidden';
				sub2.visibility = 'hidden';
				sub3.visibility = 'hidden';
				sub4.visibility = 'hidden';
				sub5.visibility = 'hidden';
			} else {
				sub1.style.visibility = 'hidden';
				sub2.style.visibility = 'hidden';
				sub3.style.visibility = 'hidden';
				sub4.style.visibility = 'hidden';
				sub5.style.visibility = 'hidden';
			}
		}
		if(_thisnavimg != currentItem) {
			turnMenuItemOff();
		}
	}
 }
 // Turn menu image off.
 function turnMenuItemOff() {
	if(currentItem != "") {
		menuItems[imgLookup[currentItem]].src = menuOffImages[imgLookup[currentItem]];
		currentItem = '';
	}
 }

 
function turnMenuItemOn(imgLabel)
 {
	if (_loaded == 1)
	{
		menuItems[imgLabel].src = menuOnImages[imgLabel].src;
	}

 }


 // Show the submenu.
 function showObj(_thisobj) {
	if(_loaded == 1) {
		if(is_nav4) {
			_thisobj.visibility = 'visible';
		} else {
			_thisobj.style.visibility = 'visible';
		}
		currentItem = _thisobj.id;
	}
 }

 // Initialize all the image arrays and stuff.
 function objInit() {
	menuOnImages = new Array();
	menuOffImages = new Array();
	menuItems = new Array();
	imgLookup = new Array();

	if(is_nav4) {
		sub1 = document.layers['sub1'];
		sub2 = document.layers['sub2'];
		sub3 = document.layers['sub3'];
		sub4 = document.layers['sub4'];
		sub5 = document.layers['sub5'];
	} else if(is_ie) {
		sub1 = document.all['sub1'];
		sub2 = document.all['sub2'];
		sub3 = document.all['sub3'];
		sub4 = document.all['sub4'];
		sub5 = document.all['sub5'];
	} else if(is_major > 3) {
		sub1 = document.getElementById('sub1');
		sub2 = document.getElementById('sub2');
		sub3 = document.getElementById('sub3');
		sub4 = document.getElementById('sub4');
		sub5 = document.getElementById('sub5');
	}
	else {
		_loaded = 0;
		return;
	}

	// Array of 'ON' images.
	// These are Image() objects because it preloads them.
	menuOnImages['nav1'] = new Image();
	menuOnImages['nav1'].src = imagePrefix + NAV1_IMAGE_ON;
	
	menuOnImages['nav2'] = new Image();
	menuOnImages['nav2'].src = imagePrefix + NAV2_IMAGE_ON;
	
	menuOnImages['nav3'] = new Image();
	menuOnImages['nav3'].src = imagePrefix + NAV3_IMAGE_ON;
	
	menuOnImages['nav4'] = new Image();
	menuOnImages['nav4'].src = imagePrefix + NAV4_IMAGE_ON;
	
	menuOnImages['nav5'] = new Image();
	menuOnImages['nav5'].src = imagePrefix + NAV5_IMAGE_ON;

	// Arrays of the 'off' images. These aren't Image() objects
	// because the images are already preloaded and cached.
	menuOffImages['nav1'] = (imagePrefix + NAV1_IMAGE_OFF);
	menuOffImages['nav2'] = (imagePrefix + NAV2_IMAGE_OFF);
	menuOffImages['nav3'] = (imagePrefix + NAV3_IMAGE_OFF);
	menuOffImages['nav4'] = (imagePrefix + NAV4_IMAGE_OFF);
	menuOffImages['nav5'] = (imagePrefix + NAV5_IMAGE_OFF);

	// References to the menu items.
	menuItems['nav1'] = document.nav1;
	menuItems['nav2'] = document.nav2;
	menuItems['nav3'] = document.nav3;
	menuItems['nav4'] = document.nav4;
	menuItems['nav5'] = document.nav5;

	imgLookup['sub1'] = 'nav1';
	imgLookup['sub2'] = 'nav2';
	imgLookup['sub3'] = 'nav3';
	imgLookup['sub4'] = 'nav4';
	imgLookup['sub5'] = 'nav5';

	_loaded = 1;

 }