// JavaScript Document
  //
  // JavaScript Browser Sniffer
  // Eric Krok, Andy King, Michel Plungjan Jan. 31, 2002
  // see http://www.webreference.com/ for more information
  //
  // 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_nav6, is_nav6up, is_ie3, is_ie4, is_ie4up, is_ie5up, is_ie6...
  // (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
  //
  // based in part on 
  // http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
  // The Ultimate JavaScript Client Sniffer
  // and Andy King's object detection sniffer
  //
  // 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. For DOM tests scripters commonly used the 
  // is_getElementById test, but make sure you test your code as
  // filter non-compliant browsers (Opera 5-6 for example) as some 
  // browsers return true for this test, and don't fully support
  // the W3C's DOM1.
  //
 // convert all characters to lowercase to simplify testing
  var agt=navigator.userAgent.toLowerCase();
  var appVer = navigator.appVersion.toLowerCase();
 // *** BROWSER VERSION ***
 var is_minor = parseFloat(appVer);
  var is_major = parseInt(is_minor);
 var is_opera = (agt.indexOf("opera") != -1);
  var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
  var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
  var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
  var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
  var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1); // new 020128- abk
  var is_opera7 = (agt.indexOf("opera 7") != -1 || agt.indexOf("opera/7") != -1); // new 021205- dmr
  var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);
  var is_opera6up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5); // new020128
  var is_opera7up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5 && !is_opera6); // new021205 -- dmr
 // Note: On IE, start of appVersion return 3 or 4
  // which supposedly is the version of Netscape it is compatible with.
  // So we look for the real version further on in the string
  // And on Mac IE5+, we look for is_minor in the ua; since 
  // it appears to be more accurate than appVersion - 06/17/2004
 var is_mac = (agt.indexOf("mac")!=-1);
  var iePos = appVer.indexOf('msie');
  if (iePos !=-1) {
  if(is_mac) {
  var iePos = agt.indexOf('msie');
  is_minor = parseFloat(agt.substring(iePos+5,agt.indexOf(';',iePos)));
  }
  else 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")||(navigator.vendor=="Debian")));
  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"));
  var is_fx = ((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=="Firefox"));
  if ((is_moz)||(is_fb)||(is_fx)) { // 032504 - 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_fb_ver = is_moz_ver;
  var is_fx_ver = 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) && (!is_fx));
 // Netscape6 is mozilla/5 + Netscape6/6.0!!!
  // Mozilla/5.0 (Windows; U; Win98; en-US; m18) Gecko/20001108 Netscape6/6.0
  // Changed this to use navigator.vendor/vendorSub - dmr 060502 
  // var nav6Pos = agt.indexOf('netscape6');
  // if (nav6Pos !=-1) {
  if ((navigator.vendor)&&
  ((navigator.vendor=="Netscape6")||(navigator.vendor=="Netscape"))&&
  (is_nav)) {
  is_major = parseInt(navigator.vendorSub);
  // here we need is_minor as a valid float for testing. We'll
  // revert to the actual content before printing the result. 
  is_minor = parseFloat(navigator.vendorSub);
  }
 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_minor >= 4); // changed to is_minor for
  // consistency - dmr, 011001
  var is_navonly = (is_nav && ((agt.indexOf(";nav") != -1) ||
  (agt.indexOf("; nav") != -1)) );
 var is_nav6 = (is_nav && is_major==6); // new 010118 mhp
  var is_nav6up = (is_nav && is_minor >= 6); // new 010118 mhp
 var is_nav5 = (is_nav && is_major == 5 && !is_nav6); // checked for ns6
  var is_nav5up = (is_nav && is_minor >= 5);
 var is_nav7 = (is_nav && is_major == 7);
  var is_nav7up = (is_nav && is_minor >= 7);
 var is_ie = ((iePos!=-1) && (!is_opera) && (!is_khtml));
  var is_ie3 = (is_ie && (is_major < 4));
 var is_ie4 = (is_ie && is_major == 4);
  var is_ie4up = (is_ie && is_minor >= 4);
  var is_ie5 = (is_ie && is_major == 5);
  var is_ie5up = (is_ie && is_minor >= 5);
  
  var is_ie5_5 = (is_ie && (agt.indexOf("msie 5.5") !=-1)); // 020128 new - abk
  var is_ie5_5up =(is_ie && is_minor >= 5.5); // 020128 new - abk
  
  var is_ie6 = (is_ie && is_major == 6);
  var is_ie6up = (is_ie && is_minor >= 6);
// 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_aol5 = (agt.indexOf("aol 5") != -1);
  var is_aol6 = (agt.indexOf("aol 6") != -1);
  var is_aol7 = ((agt.indexOf("aol 7")!=-1) || (agt.indexOf("aol7")!=-1));
  var is_aol8 = ((agt.indexOf("aol 8")!=-1) || (agt.indexOf("aol8")!=-1));
 var is_webtv = (agt.indexOf("webtv") != -1);
    
  // new 020128 - abk
  
  var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
  var is_AOLTV = is_TVNavigator;
 var is_hotjava = (agt.indexOf("hotjava") != -1);
  var is_hotjava3 = (is_hotjava && (is_major == 3));
  var is_hotjava3up = (is_hotjava && (is_major >= 3));
 // end new
    
  // *** JAVASCRIPT VERSION CHECK ***
  // Useful to workaround Nav3 bug in which Nav3
  // loads <SCRIPT LANGUAGE="JavaScript1.2">.
  // updated 020131 by dragle
  var is_js;
  if (is_nav2 || is_ie3) is_js = 1.0;
  else if (is_nav3) is_js = 1.1;
  else if ((is_opera5)||(is_opera6)) is_js = 1.3; // 020214 - dmr
  else if (is_opera7up) is_js = 1.5; // 031010 - dmr
  else if (is_khtml) is_js = 1.5; // 030110 - dmr
  else if (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_nav6)) is_js = 1.4;
  else if (is_hotjava3up) is_js = 1.4; // new 020128 - abk
  else if (is_nav6up) is_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 (is_nav && (is_major > 5)) is_js = 1.4;
  else if (is_ie && (is_major > 5)) is_js = 1.3;
  else if (is_moz) is_js = 1.5;
  else if (is_fb||is_fx) is_js = 1.5; // 032504 - dmr
  
  // what about ie6 and ie6up for js version? abk
  
  // HACK: no idea for other browsers; always check for JS version 
  // with > or >=
  else is_js = 0.0;
  // HACK FOR IE5 MAC = js vers = 1.4 (if put inside if/else jumps out at 1.3)
  if ((agt.indexOf("mac")!=-1) && is_ie5up) is_js = 1.4; // 020128 - abk
  
  // Done with is_minor testing; revert to real for N6/7
  if (is_nav6up) {
  is_minor = navigator.vendorSub;
  }
 // *** 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_os2 = ((agt.indexOf("os/2")!=-1) ||
  (navigator.appVersion.indexOf("OS/2")!=-1) ||
  (agt.indexOf("ibm-webexplorer")!=-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_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));
  // additional checks, abk
  var is_anchors = (document.anchors) ? "true":"false";
  var is_regexp = (window.RegExp) ? "true":"false";
  var is_option = (window.Option) ? "true":"false";
  var is_all = (document.all) ? "true":"false";
  // cookies - 990624 - abk
  document.cookie = "cookies=true";
  var is_cookie = (document.cookie) ? "true" : "false";
  var is_images = (document.images) ? "true":"false";
  var is_layers = (document.layers) ? "true":"false"; // gecko m7 bug?
  // new doc obj tests 990624-abk
  var is_forms = (document.forms) ? "true" : "false";
  var is_links = (document.links) ? "true" : "false";
  var is_frames = (window.frames) ? "true" : "false";
  var is_screen = (window.screen) ? "true" : "false";
// java
  var is_java = (navigator.javaEnabled());
// Flash checking code adapted from Doc JavaScript information; 
  // see http://webref.com/js/column84/2.html
 var is_Flash = false;
  var is_FlashVersion = 0;
 if ((is_nav||is_opera||is_moz||is_fb||is_fx)||
  (is_mac&&is_ie5up)) {
  var plugin = (navigator.mimeTypes && 
  navigator.mimeTypes["application/x-shockwave-flash"] &&
  navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin) ?
  navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin : 0;
  // if (plugin) {
  if (plugin&&plugin.description) {
  is_Flash = true;
  is_FlashVersion = parseInt(plugin.description.substring(plugin.description.indexOf(".")-1));
  }
  }