/* 	BROWSER & OS DETECTION */

// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();
var appVer = navigator.appVersion.toLowerCase();
//alert(appVer + ":" + agt)
// *** 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

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_safari = ((agt.indexOf('safari')!=-1) && (agt.indexOf('chrome')==-1))?true:false;
var is_khtml  = (is_safari || is_konq);
var is_safari_ver = is_major
if(is_safari && agt.indexOf("version/")>0){
	is_safari_ver = parseInt(agt.substring(agt.indexOf("version/")+8))
}

var is_safari2up = (is_safari && is_safari_ver >= 2);

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) && (agt.indexOf('firefox')!=-1 || 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;
if(is_fx && agt.indexOf("firefox/")>0){
	is_fx_ver = parseInt(agt.substring(agt.indexOf("firefox/")+8))
}

var is_fx2up = (is_fx && is_fx_ver >= 2);

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_nav71up = (is_nav && is_minor >= 7.1);
var is_nav47 = (is_nav && (agt.indexOf('4.7')!=-1));

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-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_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);
var is_ie7    = (is_ie && (is_major >= 4) && (agt.indexOf("msie 7.")!=-1) );
var is_ie7up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5 && !is_ie6);

// 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_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_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

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

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));

// *** JAVASCRIPT VERSION CHECK ***
var is_js;
if (is_nav2 || is_ie3) is_js = 1.0;
else if (is_nav3) is_js = 1.1;
else if (is_opera5up) is_js = 1.3;
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_hotjava3up) is_js = 1.4;
else if (is_nav6 || is_gecko) 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_nav6up) is_js = 1.5;
// NOTE: ie5up on mac is 1.4
else if (is_ie5up) 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));

var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));
var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1));
var is_winxp = ((agt.indexOf("windows nt 5.1")!=-1));
var is_winvista = ((agt.indexOf("windows nt 6.0")!=-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);
// hack ie5 js version for mac
if (is_mac && is_ie5up) is_js = 1.4;
var is_macosx = (is_mac && (agt.indexOf("mac os x")!=-1)); 
 var is_macosx3 = is_macosx;//(is_macosx && (agt.indexOf("10.3")!=-1));  //ONLY Mac OSX 10.3 version is supported

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_linuxredhat9 = (agt.indexOf("redhat-linux-9")!=-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));


function isFireFox(){
	return is_fx;
}
	

function hasValidOS(){
	return is_win || is_macosx || is_linux
}

function hasValidBrowser(){
	return is_ie6up || is_fx2up || is_safari2up
}

function hasValidOSBrowser(){
	if(hasValidOS() &&  hasValidBrowser()){
		if(
			(is_win && (is_ie6up || is_fx2up)) ||
			(is_macosx && (is_safari2up || is_fx2up)) ||
			(is_linux && is_fx2up)
		){
			return true;
		}
	}
	
	return false;
}

function getOSName(){
	if(is_win){
		return "win"
	} else if(is_macosx){
		return "mac"
	} else if(is_linux){
		return "lnx"
	}
}

function getBrowserType(){
	if(is_ie){
		return "ie"
	} else if(is_fx){
		return "fx"
	} else if(is_safari){
		return "sf"
	}
}

function getBrowserVersion(){
	if(is_fx){
		return is_fx_ver
	} else {
		return is_safari_ver
	}
	
	return is_major
}


function getOSBrowserName(){
	var returnString=""
	var os = getOSName()
	var browser = getBrowserType()
	
	if(os=="win"){
		returnString = "Windows"
	} else if(os=="mac"){
		returnString = "Mac"
	} else if(os=="lnx"){
		returnString = "Linux"
	}
	
	if(returnString!=""){
		if(browser=="ie"){
			returnString += " with " + "Internet Explorer"
		} else if(browser=="fx"){
			returnString += " with " + "Firefox"
		} else if(browser=="sf"){
			returnString += " with " + "Safari"
		}
	}
	
	return returnString!="" ? returnString : "Not Supported"
}

/* COOKIE DETECTION */

var vshowTestCookie = objCookieUtils.getCookieValue("vshow-test-cookie")

function isCookieEnabled(){
	return (vshowTestCookie == "test")
}

/* MEDIA PLAYER DETECTION */

var detectableWithVB = false;

// Here we write out the VBScript block for MSIE Windows
if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)) {
    document.writeln('<script language="VBscript">');

    document.writeln('\'do a one-time test for a version of VBScript that can handle this code');
    document.writeln('detectableWithVB = False');
    document.writeln('If ScriptEngineMajorVersion >= 2 then');
    document.writeln('  detectableWithVB = True');
    document.writeln('End If');

    document.writeln('\'this next function will detect most plugins');
    document.writeln('Function detectActiveXControl(activeXControlName)');
    document.writeln('  on error resume next');
    document.writeln('  detectActiveXControl = False');
    document.writeln('  If detectableWithVB Then');
    document.writeln('     detectActiveXControl = IsObject(CreateObject(activeXControlName))');
    document.writeln('  End If');
    document.writeln('End Function');
	
	document.writeln('Function getRealPlayerVersion()');
    document.writeln('  on error resume next');
    document.writeln('  getRealPlayerVersion = False');
    document.writeln('  If detectableWithVB Then');
	document.writeln('		set rpo = CreateObject("rmocx.RealPlayer G2 Control")')
	document.writeln('		If IsObject(rpo) then')
    document.writeln('      	getRealPlayerVersion = rpo.GetVersionInfo()');
	document.writeln('		End If')
    document.writeln('  End If');
    document.writeln('End Function');
	
	
	document.writeln('Function getWMPlayerVersion()');
    document.writeln('  on error resume next');
    document.writeln('  getWMPlayerVersion = False');
    document.writeln('  If detectableWithVB Then');
	document.writeln('		set rpo = CreateObject("WMPlayer.OCX.7")')
	document.writeln('		If IsObject(rpo) then')
    document.writeln('      	getWMPlayerVersion = rpo.versionInfo');
	document.writeln('		End If')
    document.writeln('  End If');
    document.writeln('End Function');

    document.writeln('</scr' + 'ipt>');
}
	
function detectReal() {
    pluginFound = detectPlugin('RealPlayer');
    // if not found, try to detect with VisualBasic
    if(!pluginFound && detectableWithVB) {
	pluginFound = (detectActiveXControl('rmocx.RealPlayer G2 Control') ||
		       detectActiveXControl('RealPlayer.RealPlayer(tm) ActiveX Control (32-bit)') ||
		       detectActiveXControl('RealVideo.RealVideo(tm) ActiveX Control (32-bit)'));
    }	
	//alert("detectReal.pluginFound: " + pluginFound)
	
	return pluginFound;
}

function detectWindowsMedia() {
    pluginFound = detectPlugin('Windows Media Player');
    // if not found, try to detect with VisualBasic
    if(!pluginFound && detectableWithVB) {
	pluginFound = detectActiveXControl('MediaPlayer.MediaPlayer.1');
    }
	//alert("detectWindowsMedia.pluginFound: " + pluginFound);
	
	return pluginFound;
}

function detectPlugin() {
    // allow for multiple checks in a single pass
    var daPlugins = detectPlugin.arguments;
    // consider pluginFound to be false until proven true
    var pluginFound = false;
    // if plugins array is there and not fake
    if (navigator.plugins && navigator.plugins.length > 0) {
	var pluginsArrayLength = navigator.plugins.length;
	// for each plugin...
	for (pluginsArrayCounter=0; pluginsArrayCounter < pluginsArrayLength; pluginsArrayCounter++ ) {
	    // loop through all desired names and check each against the current plugin name
	    var numFound = 0;
	    for(namesCounter=0; namesCounter < daPlugins.length; namesCounter++) {
		// if desired plugin name is found in either plugin name or description
		if( (navigator.plugins[pluginsArrayCounter].name.indexOf(daPlugins[namesCounter]) >= 0) || 
		    (navigator.plugins[pluginsArrayCounter].description.indexOf(daPlugins[namesCounter]) >= 0) ) {
		    // this name was found
		    numFound++;
		}   
	    }
	    // now that we have checked all the required names against this one plugin,
	    // if the number we found matches the total number provided then we were successful
	    if(numFound == daPlugins.length) {
		pluginFound = true;
		// if we've found the plugin, we can stop looking through at the rest of the plugins
		break;
	    }
	}
    }
    return pluginFound;
} // detectPlugin


var realplayerPluginFound = detectReal();
var windowsMediaPlayerPluginFound = detectWindowsMedia();

function hasMediaPlayers(){
	return realplayerPluginFound || windowsMediaPlayerPluginFound
}

function getRealPlayerBuild(){
	if(detectableWithVB){
		return getRealPlayerVersion()
	}
	
	return ""
}

function getWMPlayerBuild(){
	if(detectableWithVB){
		return getWMPlayerVersion()
	}
	
	return ""
}


/* SCREEN RESOLUTION */


var screenWidth = window.screen.width;

var screenHeight = window.screen.height;