/*
 * $Log: ua.js,v $
 * Revision 1.9  2002/07/22 14:06:21  bc6ix
 * fix license path, change version reporting to use 2 digits for each level
 *
 * Revision 1.8  2002/07/07 08:23:07  bc6ix
 * fix line endings
 *
 * Revision 1.7  2002/05/14 16:52:52  bc6ix
 * use CVS Log for revision history
 *
 *
 */

/* ***** BEGIN LICENSE BLOCK *****
 * Licensed under Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * Full Terms at http://bclary.com/lib/js/license/mpl-tri-license.txt
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Netscape code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s): Bob Clary <bclary@netscape.com>
 *
 * ***** END LICENSE BLOCK ***** */

function xbDetectBrowser()
{
  var oldOnError = window.onerror;
  var element = null;

  window.onerror = null;
  
  // work around bug in xpcdom Mozilla 0.9.1
  window.saveNavigator = window.navigator;

  navigator.OS    = '';
  navigator.version  = parseFloat(navigator.appVersion);
  navigator.org    = '';
  navigator.family  = '';

  var platform;
  if (typeof(window.navigator.platform) != 'undefined')
  {
    platform = window.navigator.platform.toLowerCase();
    if (platform.indexOf('win') != -1)
      navigator.OS = 'win';
    else if (platform.indexOf('mac') != -1)
      navigator.OS = 'mac';
    else if (platform.indexOf('unix') != -1 || platform.indexOf('linux') != -1 || platform.indexOf('sun') != -1)
      navigator.OS = 'nix';
  }

  var i = 0;
  var ua = window.navigator.userAgent.toLowerCase();
  
  if (ua.indexOf('safari') != -1)
  {
    i = ua.indexOf('safari');
    navigator.family = 'safari';
    navigator.org = 'safari';
    navigator.version = parseFloat('0' + ua.substr(i+7), 10);
  }
  else if (ua.indexOf('opera') != -1)
  {
    i = ua.indexOf('opera');
    navigator.family  = 'opera';
    navigator.org    = 'opera';
    navigator.version  = parseFloat('0' + ua.substr(i+6), 10);
  }
  else if ((i = ua.indexOf('msie')) != -1)
  {
    navigator.org    = 'microsoft';
    navigator.version  = parseFloat('0' + ua.substr(i+5), 10);
    
    if (navigator.version < 4)
      navigator.family = 'ie3';
    else
      navigator.family = 'ie4'
  }
  else if (ua.indexOf('gecko') != -1)
  {
    navigator.family = 'gecko';
    var rvStart = ua.indexOf('rv:');
    var rvEnd   = ua.indexOf(')', rvStart);
    var rv      = ua.substring(rvStart+3, rvEnd);
    var rvParts = rv.split('.');
    var rvValue = 0;
    var exp     = 1;

    for (var i = 0; i < rvParts.length; i++)
    {
      var val = parseInt(rvParts[i]);
      rvValue += val / exp;
      exp *= 100;
    }
    navigator.version = rvValue;

    if (ua.indexOf('netscape') != -1)
      navigator.org = 'netscape';
    else if (ua.indexOf('compuserve') != -1)
      navigator.org = 'compuserve';
    else
      navigator.org = 'mozilla';
  }
  else if ((ua.indexOf('mozilla') !=-1) && (ua.indexOf('spoofer')==-1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('opera')==-1)&& (ua.indexOf('webtv')==-1) && (ua.indexOf('hotjava')==-1))
  {
    var is_major = parseFloat(navigator.appVersion);
    
    if (is_major < 4)
      navigator.version = is_major;
    else
    {
      i = ua.lastIndexOf('/')
      navigator.version = parseFloat('0' + ua.substr(i+1), 10);
    }
    navigator.org = 'netscape';
    navigator.family = 'nn' + parseInt(navigator.appVersion);
  }
  else if ((i = ua.indexOf('aol')) != -1 )
  {
    // aol
    navigator.family  = 'aol';
    navigator.org    = 'aol';
    navigator.version  = parseFloat('0' + ua.substr(i+4), 10);
  }
  else if ((i = ua.indexOf('hotjava')) != -1 )
  {
    // hotjava
    navigator.family  = 'hotjava';
    navigator.org    = 'sun';
    navigator.version  = parseFloat(navigator.appVersion);
  }

  window.onerror = oldOnError;
}

xbDetectBrowser();

// Functions called by the menu under the tree
// If you are not going to have an extra frame with action buttons, if your links
// are embedded in the documents that load in the right frame, for example,
// you should move these functions to the frameset file (in this case demoFuncs.html)
// If you are using a frameless layout, you will also have to move these functions
// to the appropriate page.
// In both cases: you will have to update the DOM paths used to access the functions
// and used by the functions themselves.

// Open all folders
// May not work with very large trees (browser may time out)
// You may call this on a node other than the root, but it must be a folder
function expandTree(folderObj)
{
    var childObj;
    var i;

    //Open folder
    if (!folderObj.isOpen)
      clickOnNodeObj(folderObj)

    //Call this function for all folder children
    for (i=0 ; i < folderObj.nChildren; i++)  {
      childObj = folderObj.children[i]
      if (typeof childObj.setState != "undefined") {//is folder
        expandTree(childObj)
      }
    }
}

// Close all folders
function collapseTree()
{
	//hide all folders
	clickOnNodeObj(parent.treeframe.foldersTree)
	//restore first level
	clickOnNodeObj(parent.treeframe.foldersTree)
}

// In order to show a folder, open all the folders that are higher in the hierarchy 
// all the way to the root must also be opened.
// (Does not affect selection highlight.)
function openFolderInTree(linkID) 
{
	var folderObj;
	folderObj = findObj(linkID);
	folderObj.forceOpeningOfAncestorFolders();
	if (!folderObj.isOpen)
		clickOnNodeObj(folderObj);
} 

// Load a page as if a node on the tree was clicked (synchronize frames)
// (Highlights selection if highlight is available.)
function loadSynchPage(linkID) 
{
	var folderObj;
	docObj = findObj(linkID);
	if (docObj != null)
	{
		docObj.forceOpeningOfAncestorFolders();
		clickOnLink(linkID,docObj.link,'basefrm'); 

	    //Scroll the tree window to show the selected node
	    //Other code in these functions needs to be changed to work with
	    //frameless pages, but this code should, I think, simply be removed
	    if (typeof document.body != "undefined") //scroll doesn work with NS4, for example
	        document.body.scrollTop=docObj.navObj.offsetTop
    }else{
	   docObj = findObj(69);
	   clearHighlight(docObj)
   }
}