//
// JavaScript Browser Sniffer
//  - Eric Krok, Andy King, Michel Plung  Jan. 31, 2002
//  - see http://www.webreference.com/ for more information
//  - based in part on http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation;
//
	// 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_opera8 = (agt.indexOf("opera 8") != -1 || agt.indexOf("opera/8") != -1); // new 220405- ktou
	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
	var is_opera8up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5 && !is_opera6 && !is_opera7); // new 220405- ktou

	// 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

// 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));
	  }
   }