// Ultimate client-side JavaScript client sniff. Version 3.03
// (C) Netscape Communications 1999.  Permission granted to reuse and distribute.
// Revised 17 May 99 to add is.nav5up and is.ie5up (see below).
// Revised 21 Nov 00 to add is.gecko and is.ie5_5 Also Changed is.nav5 and is.nav5up to is.nav6 and is.nav6up
// Revised 22 Feb 01 to correct Javascript Detection for IE 5.x, Opera 4, 
//                      correct Opera 5 detection
//                      add support for winME and win2k
//                      synch with browser-type-oo.js
// Revised 26 Mar 01 to correct Opera detection
// Revised 02 Oct 01 to add IE6 detection

// Everything you always wanted to know about your JavaScript client
// but were afraid to ask ... "Is" is the constructor function for "is" object,
// which has properties indicating:
// (1) browser vendor:
//     is.nav, is.ie, is.opera, is.hotjava, is.webtv, is.TVNavigator, is.AOLTV
// (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.nav6, is.nav6up, is.gecko, is.ie3, 
//     is.ie4, is.ie4up, is.ie5, is.ie5up, is.ie5_5, is.ie5_5up, is.ie6, is.ie6up, is.hotjava3, is.hotjava3up
// (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.winme, is.win2k
//     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
//
// See http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html and
// http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html
// for detailed lists of userAgent strings.
//
// 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.


function Is ()
{   // convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();

    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use is.ie5up to detect IE5.

    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);

    // Note: Opera and WebTV spoof Navigator.  We do strict client detection.
    // If you want to allow spoofing, take out the tests for opera and webtv.
    this.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));
    this.nav2 = (this.nav && (this.major == 2));
    this.nav3 = (this.nav && (this.major == 3));
    this.nav4 = (this.nav && (this.major == 4));
    this.nav4up = (this.nav && (this.major >= 4));
    this.navonly      = (this.nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    this.nav6 = (this.nav && (this.major == 5));
    this.nav6up = (this.nav && (this.major >= 5));
    this.gecko = (agt.indexOf('gecko') != -1);


    this.ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    this.ie3    = (this.ie && (this.major < 4));
    this.ie4    = (this.ie && (this.major == 4) && (agt.indexOf("msie 4")!=-1) );
    this.ie4up  = (this.ie  && (this.major >= 4));
    this.ie5    = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.0")!=-1) );
    this.ie5_5  = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.5") !=-1));
    this.ie5up  = (this.ie  && !this.ie3 && !this.ie4);
    this.ie5_5up =(this.ie && !this.ie3 && !this.ie4 && !this.ie5);
    this.ie6    = (this.ie && (this.major == 4) && (agt.indexOf("msie 6.")!=-1) );
    this.ie6up  = (this.ie  && !this.ie3 && !this.ie4 && !this.ie5 && !this.ie5_5);

    // 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.
    this.aol   = (agt.indexOf("aol") != -1);
    this.aol3  = (this.aol && this.ie3);
    this.aol4  = (this.aol && this.ie4);
    this.aol5  = (agt.indexOf("aol 5") != -1);
    this.aol6  = (agt.indexOf("aol 6") != -1);

    this.opera = (agt.indexOf("opera") != -1);
    this.opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
    this.opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
    this.opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
    this.opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
    this.opera5up = (this.opera && !this.opera2 && !this.opera3 && !this.opera4);

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

    this.TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
    this.AOLTV = this.TVNavigator;

    this.hotjava = (agt.indexOf("hotjava") != -1);
    this.hotjava3 = (this.hotjava && (this.major == 3));
    this.hotjava3up = (this.hotjava && (this.major >= 3));

    // *** JAVASCRIPT VERSION CHECK ***
    if (this.nav2 || this.ie3) this.js = 1.0;
    else if (this.nav3) this.js = 1.1;
    else if (this.opera5up) this.js = 1.3;
    else if (this.opera) this.js = 1.1;
    else if ((this.nav4 && (this.minor <= 4.05)) || this.ie4) this.js = 1.2;
    else if ((this.nav4 && (this.minor > 4.05)) || this.ie5) this.js = 1.3;
    else if (this.hotjava3up) this.js = 1.4;
    else if (this.nav6 || this.gecko) this.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 (this.nav6up) this.js = 1.5;
    // note ie5up on mac is 1.4
    else if (this.ie5up) this.js = 1.3

    // HACK: no idea for other browsers; always check for JS version with > or >=
    else this.js = 0.0;

    // *** PLATFORM ***
    this.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.
    this.win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));

    // is this a 16 bit compiled version?
    this.win16 = ((agt.indexOf("win16")!=-1) || 
               (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || 
               (agt.indexOf("windows 16-bit")!=-1) );  

    this.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".
    this.win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
    this.winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
    this.win32 = (this.win95 || this.winnt || this.win98 || 
                    ((this.major >= 4) && (navigator.platform == "Win32")) ||
                    (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));

    this.winme = ((agt.indexOf("win 9x 4.90")!=-1));
    this.win2k = ((agt.indexOf("windows nt 5.0")!=-1));

    this.os2   = ((agt.indexOf("os/2")!=-1) || 
                    (navigator.appVersion.indexOf("OS/2")!=-1) ||   
                    (agt.indexOf("ibm-webexplorer")!=-1));

    this.mac    = (agt.indexOf("mac")!=-1);
    // hack ie5 js version for mac
    if (this.mac && this.ie5up) this.js = 1.4;
    this.mac68k = (this.mac && ((agt.indexOf("68k")!=-1) || 
                               (agt.indexOf("68000")!=-1)));
    this.macppc = (this.mac && ((agt.indexOf("ppc")!=-1) || 
                                (agt.indexOf("powerpc")!=-1)));

    this.sun   = (agt.indexOf("sunos")!=-1);
    this.sun4  = (agt.indexOf("sunos 4")!=-1);
    this.sun5  = (agt.indexOf("sunos 5")!=-1);
    this.suni86= (this.sun && (agt.indexOf("i86")!=-1));
    this.irix  = (agt.indexOf("irix") !=-1);    // SGI
    this.irix5 = (agt.indexOf("irix 5") !=-1);
    this.irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1));
    this.hpux  = (agt.indexOf("hp-ux")!=-1);
    this.hpux9 = (this.hpux && (agt.indexOf("09.")!=-1));
    this.hpux10= (this.hpux && (agt.indexOf("10.")!=-1));
    this.aix   = (agt.indexOf("aix") !=-1);      // IBM
    this.aix1  = (agt.indexOf("aix 1") !=-1);    
    this.aix2  = (agt.indexOf("aix 2") !=-1);    
    this.aix3  = (agt.indexOf("aix 3") !=-1);    
    this.aix4  = (agt.indexOf("aix 4") !=-1);    
    this.linux = (agt.indexOf("inux")!=-1);
    this.sco   = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1);
    this.unixware = (agt.indexOf("unix_system_v")!=-1); 
    this.mpras    = (agt.indexOf("ncr")!=-1); 
    this.reliant  = (agt.indexOf("reliantunix")!=-1);
    this.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)); 
    this.sinix = (agt.indexOf("sinix")!=-1);
    this.freebsd = (agt.indexOf("freebsd")!=-1);
    this.bsd = (agt.indexOf("bsd")!=-1);
    this.unix  = ((agt.indexOf("x11")!=-1) || this.sun || this.irix || this.hpux || 
                 this.sco ||this.unixware || this.mpras || this.reliant || 
                 this.dec || this.sinix || this.aix || this.linux || this.bsd || this.freebsd);

    this.vms   = ((agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1));
}

var is;
var isIE3Mac = false;
// this section is designed specifically for IE3 for the Mac

if ((navigator.appVersion.indexOf("Mac")!=-1) && (navigator.userAgent.indexOf("MSIE")!=-1) && 
(parseInt(navigator.appVersion)==3))
       isIE3Mac = true;
else   is = new Is(); 

//alert("BROWSER: " + is.nav4);




  /**
   * Replace a character troughout a string with a string.
   *
   * @param str the original string.
   * @param pattern the original pattern to replace.
   * @param replacement the string to use as a replacement.
   * @return the original string with the characters replaced.
   */
  function replace(str, pattern, replacement)
  {
    var sb = "";
    var i = 0;
    var nsI = 0;

    while ((i = str.indexOf(pattern, i)) >= 0)
    {
      if (i != nsI)
      {
        sb += (str.substring(nsI, i));
      }

      sb += replacement;
      i += pattern.length;
      nsI = i;
    }

    sb += (str.substring(nsI, str.length));

    return sb;
  }


function replaceStandard(opts)
{
/*
  opts = replace(opts, "%2F", "/");
  opts = replace(opts, "%3A", ":");
  opts = replace(opts, "%2f", "/");
  opts = replace(opts, "%3a", ":");
  opts = replace(opts, " ", "%20");
  opts = replace(opts, "'", "%27");
  return opts;
*/
  return unescape(opts);
}


// File:
//   extract.js
// Author:
//   Samuel A. Rebelsky
//   This code may be freely reused for non-commercial purposes.
// Description:
//   Functions for extracting information (from query strings or
//   cookies or ...)
// Contents:
//   queryField(fieldname) -- extract a field from the query string
// Last modified:
//   Wednesday, June 11, 1997

// alert("Loading extract.js") // DEBUG

// Function
//   queryField(fieldname)
// Description
//   Looks at the query string to the document, and extracts
//   a field from the query. 
// Note
//   The query string has the form
//      ?<fldname>=<value>&<fldname>=<value>
function queryField(opt)
{

//  alert("argument passed: " + opt) // DEBUG

  var keyloc		// The location of the start of "key=value"
  var nextkey 		// The start of the next key
  var start 		// The start of the value
  var opts			// The options specified by the search string
  var optval		// The value of the selected option
  // Determine the options/search string
  
  
  opts=location.search

  if(opts == 0 || opts.length <= 0) return "";

  opts = replaceStandard(opts);

// alert("location.search: " + opts) // DEBUG  
 
  // Most keys start after an & and are followed by an = sign
  keyloc = opts.indexOf("&" + opt + "=")
  // If a string isn't found, indexOf returns -1.  So, we try the "first"
  // key, which appears right after the initial question mark
  if(keyloc == -1) {
    keyloc = opts.indexOf("?" + opt + "=")
  }
  // If, at this point, we still haven't found the key, stop.
  if (keyloc == -1) {
    return ""
  } 
  // The value normally ends with an ampersand (which marks the start of the next key/value pair)
  nextkey = opts.indexOf("&",keyloc+1)  
  // But sometimes there is no next pair
  if (nextkey == -1) {
    nextkey = opts.length
  }
  // Okay, what next?  Verify that it's reasonable
  if (nextkey < keyloc) {
    return ""
  }  
  // Get and return the value
  sval = keyloc+2+opt.length
  optval = plustospace(unescape(opts.substring(sval,nextkey)))
  return optval
} // getOption()

// Function
//   plustospace
// Description
//   Converts all the plus signs in a string to spaces.
//   (Most browsers convert spaces to pluses for form submission)
// Note
//   Not all of the code is what I'd expect, but this has been
//   thoroughly tested on Netscape Navigator 3.0 for the Mac.
function plustospace(txt)
{
  // Sanity check on empty string
  if (txt == "") { return txt }
  
  // Variables
  var newtxt=""  // The txt without the spaces
  var pos=0      // The position of the plus sign
  var prev=0     // The position of the previous plus sign
  var done=false // sentinel for loop
  var tmp        // Used for debugging
  
  // Repeatedly find the next + sign, stopping when no more
  // are found
  // alert("Text is '" + txt + "'") // DEBUG
  while (!done) {
    pos = txt.indexOf("+",prev)
    // tmp = prompt("Plus found at '" + pos + "'", "OK")  // DEBUG
    // if (tmp != "OK") { done = 1 }// DEBUG
    if (prev >= txt.length) {
      done = true
    }
    else if (pos == 0) {
      prev=1
      newtxt += " "
    }
    else if ((pos < 0) || (pos == "")) {
      // Not found ... exit
      done = true
    }
    else {
      // Copy text
      if (pos>prev) { newtxt += txt.substring(prev,pos) }
      newtxt += " "
      // And move on
      prev=pos+1
    }
  }
  // Get the last little bit
  newtxt += txt.substring(prev,txt.length)
  return newtxt  
} // plustospace()



// The Central Randomizer 1.3 (C) 1997 by Paul Houle (houle@msc.cornell.edu)
// See:  http://www.msc.cornell.edu/~houle/JavaScript/randomizer.html

function rnd() {
  var today=new Date();
  var seed=today.getTime();

        seed = (seed*9301+49297) % 233280;
        return seed/(233280.0);
};

function rand(number) {
        return Math.ceil(rnd()*number) -1;
};

// end central randomizer. -->


var strNetscapeAlert = "I'm not a big fan of Microsoft software products either,\n"
            + "but this site will not work correctly with Netscape or IE3.\n"
            + "Not only is Netscape buggy but its\n"
            + "Javascript and CSS implementations are awkward, too.\n"
            + "I stopped supporting Netscape after it crashed my NT4.0\n"
            + "and froze on Linux. Keep using Netscape if you must,\n"
            + "but to view this site you have to use IE5+.\n"
            + "Any questions? Just drop me email: jake@fotoalbumz.com";

/**
 * Check for Netscape
 */
function checkBrowser()
{
  if (!isIE3Mac && is.gecko)
  {
     // JavaScript here for user agents implementing Gecko layout engine
     alert(strNetscapeAlert);
  }
  else if  (!isIE3Mac && is.nav4)
  {
     // JavaScript here for Navigator 4
     alert(strNetscapeAlert);
  }
  else if (!isIE3Mac && is.ie5up)
  {
     // JavaScript here for IE 4 and later
  }
  else if (!isIE3Mac && (is.nav3 || is.opera))
  {
     // JavaScript here for Nav3 and Opera 
     alert(strNetscapeAlert);
  }
  else 
  {
     // JavaScript here for Nav2 and IE 3
     alert(strNetscapeAlert);
  }
}



/**
 * Check for IE
 */
function isIE5()
{
  if (!isIE3Mac && is.gecko)
  {
     // JavaScript here for user agents implementing Gecko layout engine
     return false;
  }
  else if  (!isIE3Mac && is.nav4)
  {
     // JavaScript here for Navigator 4
     return false;
  }
  else if (!isIE3Mac && is.ie5up)
  {
    return true;
  }
  else if (!isIE3Mac && (is.nav3 || is.opera))
  {
     // JavaScript here for Nav3 and Opera 
     return false;
  }
  else 
  {
     // JavaScript here for Nav2 and IE 3 
     return false;
  }
}




function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also
   // removes consecutive spaces and replaces it with one space.
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function


//var bgcolor = "99ccff";
//var bgcolor = "cccccc";
//var bgcolor = "ccbb88";
var bgcolor = "7C8DAF";


var albums = new Array();
albums[0] = "";

var images = new Array();
images[0] = "";

var orderedAlbums = new Array();
var orderedImages = new Array();

var albumFiles = new Array();
albumFiles[0] = "";

var orderedAlbumFiles = new Array();

var list = "album_files/portfolio.js";
var albumList = "album_files/albumFiles.js";


//var netscapeHost = "http://myphotos.topcities.com/";
//var netscapeHost = "http://localhost/fotoalbumz/";
var netscapeHost = "";
var commonHost = "";


function getCommonHost()
{
  commonHost = window.location.href.substring(0, window.location.href.lastIndexOf("/", window.location.href.lastIndexOf("?"))+1);
  return commonHost;
}



function getList()
{
  getCommonHost();
  var localAlbumList = trim(queryField("albums"));
  if(localAlbumList != 0 && localAlbumList != null && localAlbumList.length > 0)
  {
    albumList = replaceStandard(localAlbumList);
  }

  var localList = trim(queryField("list"));
  if(localList != 0 && localList != null && localList.length > 0)
  {
    list = replaceStandard(localList);
  }

  document.write("<SCRIPT LANGUAGE=\"JavaScript\" SRC=\"" + albumList + "\"></SCRIPT>");
  document.write("<SCRIPT LANGUAGE=\"JavaScript\" SRC=\"" + list + "\"></SCRIPT>");
//  myNavigate("index.html?bgcolor=" + bgcolor + "&list=" + list + "&albums=" + albumList);
}



function getAlbums()
{
}




/**
 * Browser-depending navigation
 */
function myNavigate(url)
{
//alert("last index = " + window.location.href.lastIndexOf("/", window.location.href.lastIndexOf("?")));

//alert("full URL = " + baseUrl + url);


//http://localhost/fotoalbumz/start.html?bgcolor=7C8DAF&list=album_files/portfolio.js&albums=album_files/albumFiles.js&albums=undefined

/*
  if(isIE5())
  {
    navigate(url);
  }
  else
  {
    window.location.href = getValidHost(netscapeHost) + url;
  }
*/
//    alert(getCommonHost() + url);
    window.location.href = getCommonHost() + url;
}