// Returns true if current browser is Netscape.
function isNS() {
	var name = navigator.appName;
    return (name.substring(0,1) == 'N');
}

// Returns true if current platform is Macintosh.
function isMac() {
	var version = navigator.appVersion;
	return (version.indexOf("Mac") >= 0);
}

// JavaScript Document

if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)) {
  document.writeln('<script language="VBscript">');
  document.writeln('Function detectActiveXControl(activeXControlName)');
  document.writeln('  on error resume next');
  document.writeln('  detectActiveXControl = False');
  document.writeln('  detectActiveXControl = IsObject(CreateObject(activeXControlName))');
  document.writeln('End Function');
  document.writeln('</scr' + 'ipt>');
}

function getFlashVersion(){
  var installedVersion = 0;
  if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)) {
    for (var i=3; i<10; i++){
      if(detectActiveXControl("ShockwaveFlash.ShockwaveFlash."+i) == true) installedVersion = i;
    }
  } else {
    if (navigator.plugins["Shockwave Flash"]) {
      var pluginDesc = navigator.plugins["Shockwave Flash"].description;
      installedVersion = parseInt( pluginDesc.charAt( pluginDesc.indexOf(".")-1 ) );
    }
    if(navigator.userAgent.indexOf("WebTV") != -1) installedVersion = 3;
  }
  return installedVersion;
}

    // convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();
    var appVer = navigator.appVersion.toLowerCase();
    var platform = navigator.platform;
    var platformversion = navigator.platform;
	var is_FlashVersion = getFlashVersion();



  // *** BROWSER VERSION ***


    var is_minor = parseFloat(appVer);
    var is_major = parseInt(is_minor);
var is_ie   = ((iePos!=-1) && (!is_opera) && (!is_khtml));

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

    var iePos  = appVer.indexOf('msie');
    if (iePos !=-1) {
       is_minor = parseFloat(appVer.substring(iePos+5,appVer.indexOf(';',iePos)))
       is_major = parseInt(is_minor);
    }

    // ditto Konqueror

    var is_konq = false;
    var kqPos   = agt.indexOf('konqueror');
    if (kqPos !=-1) {
       is_konq  = true;
       is_minor = parseFloat(agt.substring(kqPos+10,agt.indexOf(';',kqPos)));
       is_major = parseInt(is_minor);
    }

    var is_getElementById   = (document.getElementById) ? "true" : "false"; // 001121-abk
    var is_getElementsByTagName = (document.getElementsByTagName) ? "true" : "false"; // 001127-abk
    var is_documentElement = (document.documentElement) ? "true" : "false"; // 001121-abk

    var is_safari = ((agt.indexOf('safari')!=-1)&&(agt.indexOf('mac')!=-1))?true:false;
    var is_khtml  = (is_safari || is_konq);

    var is_gecko = ((!is_khtml)&&(navigator.product)&&(navigator.product.toLowerCase()=="gecko"))?true:false;
    var is_gver  = 0;
    if (is_gecko) is_gver=navigator.productSub;

    var is_moz   = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) &&
                    (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1)  &&
                    (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)     &&
                    (is_gecko) &&
                    ((navigator.vendor=="")||(navigator.vendor=="Mozilla")));
    var is_fb = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) &&
                 (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1)  &&
                 (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)     &&
                 (is_gecko) && (navigator.vendor=="Firebird"));
    if ((is_moz)||(is_fb)) {  // 112403 - dmr
       var is_moz_ver = (navigator.vendorSub)?navigator.vendorSub:0;
       if(!(is_moz_ver)) {
           is_moz_ver = agt.indexOf('rv:');
           is_moz_ver = agt.substring(is_moz_ver+3);
           is_paren   = is_moz_ver.indexOf(')');
           is_moz_ver = is_moz_ver.substring(0,is_paren);
       }
       is_minor = is_moz_ver;
       is_major = parseInt(is_moz_ver);
    }


var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)
                && (!is_khtml) && (!(is_moz)) &&(!is_fb));



// *** 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));

	var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));    // new 020128 - abk
    var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1) || (agt.indexOf("windows 2000")!=-1)); // 020214 - dmr
    var is_winxp = ((agt.indexOf("windows nt 5.1")!=-1) || (agt.indexOf("windows xp")!=-1)); // 020214 - dmr

    // 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_mac    = (agt.indexOf("mac")!=-1);
    if (is_mac) { is_win = !is_mac; } // dmr - 06/20/2002
    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_linux = (agt.indexOf("inux")!=-1);


//determine what os and borwser that they have
	if (is_win) {
	platform="win";
	}

	if (is_mac) {
	platform="mac";
	}

	if (is_linux) {
	platform="linux";
	}

	if (is_win31) {
	platformversion="win31";
	}

	if (is_winme) {
	platformversion="winme";
	}
	if (is_win95) {
	platformversion="win95";
	}

	if (is_win98) {
	platformversion="win98";
	}

	if (is_win2k) {
	platformversion="win2k";
	}

	if (is_winnt) {
	platformversion="winnt";
	}

	if (is_winxp) {
	platformversion="winxp";
	}

	if (is_mac68k) {
	platformversion="mac68k";
	}

	if (is_macppc) {
	platformversion="macppc";
	}

	if (is_linux) {
	platformversion="linux";
	}

	if (is_ie) {
	browser="ie";
	}

	if (is_opera) {
	browser="opera";
	}
	if (is_moz){
            browser="moz";
     	}

	if (is_nav) {
		browser="nav";
	}
	if (is_safari) {
	browser="safari";
	}