//VSS Header Information (Do Not Modify. VSS will Modify on Check In)
//	Last Changed By:	$Author: Jhelak $
//	Last Changed:		$Date: 9/27/01 2:53p $
//	VSS Version Number:	$Revision: 1 $
//
// Client-side Javascript client sniffer
// (c) OAO Healthcare Solutions 2000.

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

// Browser version variables

var b_major_ver = parseInt(navigator.appVersion);
var b_minor_ver = parseFloat(navigator.appVersion);

// Set Netscape variables
var NS_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) &&
			(agt.indexOf('compatible')==-1) &&(agt.indexOf('opera')==-1) && 
			(agt.indexOf('webtv')==-1));
var NS_nav2 = (NS_nav && (b_major_ver ==2));
var NS_nav3 = (NS_nav && (b_major_ver ==3));
var NS_nav4 = (NS_nav && (b_major_ver ==4));
var NS_nav4up = (NS_nav && (b_major_ver >=4));
var NS_nav5 = (NS_nav && (b_major_ver ==5));
var NS_nav5up = (NS_nav && (b_major_ver >=5));

// Set Microsoft Internet Explorer variables
var MS_ie = (agt.indexOf('msie') != -1);
var MS_ie3 = (MS_ie && (b_major_ver < 4));
var MS_ie4 = (MS_ie && (b_major_ver == 4) && (agt.indexOf('msie 5.0')==-1));
var MS_ie4up = (MS_ie && (b_major_ver >= 4));
var MS_ie5 = (MS_ie && (b_major_ver == 4) && (agt.indexOf('msie 5.0')!=-1));
var MS_ie5up = (MS_ie && !MS_ie3 && !MS_ie4);

// Set other Browser variables
// America Online
var aol = (agt.indexOf("aol") != -1);
var aol3 = (aol && MS_ie3);
var aol4 = (aol && MS_ie4);
// Opera and Web TV
var opera = (agt.indexOf("opera") != -1);
var webtv = (agt.indexOf("webtv") != -1);

// ** Javascript Version Check
var js_ver
if (NS_nav || MS_ie3) js_ver = 1.0
else if (NS_nav3 || opera) js_ver = 1.1
else if ((NS_nav4 && (b_minor_ver <= 4.05)) || MS_ie4) js_ver = 1.2
else if ((NS_nav4 && (b_minor_ver > 4.05)) || MS_ie5) js_ver = 1.3
else if (NS_nav5) js_ver = 1.4
else if (NS_nav && (b_major_ver > 5)) js_ver = 1.4
else if (MS_ie && (b_major_ver > 5)) js_ver = 1.3
else js_ver = 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));