// Browser Detect  v2.1.6
// documentation:
//      http://www.dithered.com/javascript/browser_detect/index.html
//      http://dithered.chadlindstrom.ca/javascript/browser_detect/index.html
// license: http://creativecommons.org/licenses/by/1.0/
// code by Chris Nott (chris[at]dithered[dot]com)
// Adapted for use by SunGard Higher Education - 08-15-2006
// Updated for Internet Explorer 7 - 12-07-2006
// Updated to include Internet Explorer 7 as a valid browser - 03-02-2007


function BrowserDetect() {
   var ua = navigator.userAgent.toLowerCase();

   // browser engine name
   this.isGecko       = (ua.indexOf('gecko') != -1 &&
                         ua.indexOf('safari') == -1);
   this.isAppleWebKit = (ua.indexOf('applewebkit') != -1);

   // browser name
   this.isKonqueror   = (ua.indexOf('konqueror') != -1);
   this.isSafari      = (ua.indexOf('safari') != - 1);
   this.isOmniweb     = (ua.indexOf('omniweb') != - 1);
   this.isOpera       = (ua.indexOf('opera') != -1);
   this.isIcab        = (ua.indexOf('icab') != -1);
   this.isAol         = (ua.indexOf('aol') != -1);
   this.isIE          = (ua.indexOf('msie') != -1 &&
                        (!this.isOpera) &&
                        (ua.indexOf('webtv') == -1) );
   this.isMozilla     = (this.isGecko &&
                        (ua.indexOf('gecko/') + 14 == ua.length) );
   this.isFireFox     = (ua.indexOf('firefox/') != -1);
   this.isFirebird    = (ua.indexOf('firebird/') != -1);
   this.isNS          = ( (this.isGecko) ?
                        (ua.indexOf('netscape') != -1) :
                        ( (ua.indexOf('mozilla') != -1) &&
                        (!this.isOpera) &&
                        (!this.isSafari) &&
                        (ua.indexOf('spoofer') == -1) &&
                        (ua.indexOf('compatible') == -1) &&
                        (ua.indexOf('webtv') == -1) &&
                        (ua.indexOf('hotjava') == -1) ) );

   // spoofing and compatible browsers
   this.isIECompatible = ( (ua.indexOf('msie') != -1) && !this.isIE);
   this.isNSCompatible = ( (ua.indexOf('mozilla') != -1) &&
                         (!this.isNS) &&
                         (!this.isMozilla) );

   // rendering engine versions
   this.geckoVersion = ( (this.isGecko) ?
                       (ua.substring( (ua.lastIndexOf('gecko/') + 6),
                                      (ua.lastIndexOf('gecko/') + 14) ) ) :
                       ( -1 ) );
   this.equivalentMozilla =
                       ( (this.isGecko) ?
                       (parseFloat( ua.substring(
                                    ua.indexOf('rv:') + 3 ) ) ) :
                       ( -1 ) );
   this.appleWebKitVersion =
                       ( (this.isAppleWebKit) ?
                       (parseFloat( ua.substring(
                                    ua.indexOf('applewebkit/') + 12) ) ) :
                       ( -1 ) );

   // browser version
   this.versionMinor = parseFloat(navigator.appVersion);

   // correct version number
   if (this.isGecko && !this.isMozilla) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('/',
                                      ua.indexOf('gecko/') + 6) + 1 ) );
   }
   else if (this.isMozilla) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('rv:') + 3 ) );
   }
   else if (this.isFireFox) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('firefox/') + 8 ) );
   }
   else if (this.isIE && this.versionMinor >= 4) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('msie ') + 5 ) );
   }
   else if (this.isKonqueror) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('konqueror/') + 10 ) );
   }
   else if (this.isSafari) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.lastIndexOf('safari/') + 7 ) );
   }
   else if (this.isOmniweb) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.lastIndexOf('omniweb/') + 8 ) );
   }
   else if (this.isOpera) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('opera') + 6 ) );
   }
   else if (this.isIcab) {
      this.versionMinor = parseFloat( ua.substring(
                                      ua.indexOf('icab') + 5 ) );
   }

   this.versionMajor = parseInt(this.versionMinor);

   // dom support
   this.isDOM1 = (document.getElementById);
   this.isDOM2Event = (document.addEventListener &&
                       document.removeEventListener);

   // css compatibility mode
   this.mode = document.compatMode ? document.compatMode : 'BackCompat';

   // platform
   this.isWin    = (ua.indexOf('win') != -1);
   this.isWin32  = (this.isWin &&
                   ( ua.indexOf('95') != -1 ||
                     ua.indexOf('98') != -1 ||
                     ua.indexOf('nt') != -1 ||
                     ua.indexOf('win32') != -1 ||
                     ua.indexOf('32bit') != -1 ||
                     ua.indexOf('xp') != -1) );
   this.isMac    = (ua.indexOf('mac') != -1);
   this.isUnix   = (ua.indexOf('unix') != -1 ||
                    ua.indexOf('sunos') != -1 ||
                    ua.indexOf('bsd') != -1 ||
                    ua.indexOf('x11') != -1)
   this.isLinux  = (ua.indexOf('linux') != -1);

   // specific browser shortcuts
   this.isNS4x = (this.isNS && this.versionMajor == 4);
   this.isNS40x = (this.isNS4x && this.versionMinor < 4.5);
   this.isNS47x = (this.isNS4x && this.versionMinor >= 4.7);
   this.isNS4up = (this.isNS && this.versionMinor >= 4);
   this.isNS6x = (this.isNS && this.versionMajor == 6);
   this.isNS6up = (this.isNS && this.versionMajor >= 6);
   this.isNS7x = (this.isNS && this.versionMajor == 7);
   this.isNS7up = (this.isNS && this.versionMajor >= 7);
   this.isNS8x = (this.isNS && this.versionMajor == 8);
   this.isNS8up = (this.isNS && this.versionMajor >= 8);

   this.isIE4x = (this.isIE && this.versionMajor == 4);
   this.isIE4up = (this.isIE && this.versionMajor >= 4);
   this.isIE5x = (this.isIE && this.versionMajor == 5);
   this.isIE55 = (this.isIE && this.versionMinor == 5.5);
   this.isIE5up = (this.isIE && this.versionMajor >= 5);
   this.isIE6x = (this.isIE && this.versionMajor == 6);
   this.isIE6up = (this.isIE && this.versionMajor >= 6);
   this.isIE7x = (this.isIE && this.versionMajor == 7);
   this.isIE7up = (this.isIE && this.versionMajor >= 7);

   this.isIE4xMac = (this.isIE4x && this.isMac);
}
var browser = new BrowserDetect();

if (!((browser.isWin &&
   (  (browser.isIE && browser.isIE6up) ||
      (browser.isNS && browser.versionMinor >= 7.2) ||
      (browser.isFireFox && browser.versionMinor >= 1.5) ||
      (browser.isFireFox && browser.versionMinor == 1) ||
      (browser.isMozilla && browser.versionMinor >= 1.7)
   )) ||
   (browser.isMac &&
   (  (browser.isNS && browser.versionMinor >= 7.2) ||
      (browser.isFireFox && browser.versionMinor >= 1.5) ||
      (browser.isMozilla && browser.versionMinor >= 1.7)
   )))
   ) {
      alert("You are using an unsupported browser.  If you continue, some "+
            "features may not function properly.  To view the list of "+
            "supported browsers, select the Browser Requirements link on "+
            "the PAWS home page.");
}
