/*************************************************************************

    chm2web Search Library 1.0
    Copyright (c) 2002-2003 A!K Research Labs (http://www.aklabs.com)  
    http://chm2web.aklabs.com - HTML Help Conversion Utility

    Tested with: Internet Explorer 5, Opera 6, Mozilla 1.2, NN6

    ATTENTION! You can use this library only with web help system 
               generated by chm2web software.  
               
**************************************************************************/

var request = [];

var browser = "ie";
var bn=window.navigator.appName;
var ver=navigator.appVersion;

ver = parseFloat(ver.indexOf('MSIE') > 0 ? ver.split(';')[1].split(' ')[2] : ver.split(' ')[0]);

if (navigator.userAgent.indexOf('Opera') != -1 && ver >= 4)
  browser = "opera";
else
  if (bn.indexOf('Netscape') != -1)
    browser = "netscape";

function PrepareRequest(req)
{
  var regexp = /(\x20\x20)/g;
  while (req.match(regexp))
    req = req.replace(regexp, "\x20")
  
  regexp = /(^\x20)|(\x20$)/g;
  while (req.match(regexp))
    req = req.replace(regexp, "");
  return req;
}

function ValidateRequest(s)
{
  var regexp = "/[`~!@#\\$%\\^&\\*\\(\\)\\-_\\+=\\{\\}\\[\\]\\|\\\\<>,\\.\\?/;:\\'\\\"]/g";

  if (s.match(regexp))
  {
    alert("Invalid character at position " + (regexp.exec(s).index + 1) + "!");
    return false;
  }

  regexp = /((OR|AND)$)|(^(OR|AND))|((OR|AND)[^\x20])|([^\x20](OR|AND))|(\x20((OR)|(AND))\x20((OR)|(AND)\x20))/g;
  if (s.match(regexp))
  {
    alert("Invalid syntax at " + (regexp.exec(s).index + 1) + " character!");
    return false;
  }
  return true;
}

function ANDarrays(a, b)
{
  var c = [];
  for (var i = 0; i < a.length; i++)
    for (var j = 0; j < b.length; j++)
      if (a[i] == b[j])
        c[c.length] = a[i];
  return c;
}

function ORarrays(a, b)
{
  var c = b;
  var f;
  for (var i = 0; i < a.length; i++)
  {
    f = false;
    for (var j = 0; j < b.length; j++)
    {
      if (a[i] == b[j])
      {
        f = true;
        break;
      }
    }
    if (!f)
      c[c.length] = a[i];
  }
  return c;
}

function RecursiveSearch(indx, action, resultsarr)
{
  if (indx == request.length)
    return resultsarr;

  if (request[indx] == "OR")
    return RecursiveSearch(indx + 1, false, resultsarr);
  else
    if (request[indx] == "AND")
      return RecursiveSearch(indx + 1, true, resultsarr);
    else
      for (var i = 0; i < SearchIndexes.length; i++)
        if (SearchIndexes[i][0] == request[indx].toUpperCase())
        {
          if (action)
            if (indx)
              resultsarr = ANDarrays(resultsarr, SearchIndexes[i][1]);
            else
              resultsarr = SearchIndexes[i][1];
          else
            resultsarr = ORarrays(resultsarr, SearchIndexes[i][1]);
          return RecursiveSearch(indx + 1, true, resultsarr);
        }
  if (action)
    if (indx)
      return [];
    else
      return RecursiveSearch(indx + 1, true, resultsarr);
  else
    return resultsarr;
}

function Search(s)
{
  if (!s || !ValidateRequest(s))
    return false;

  document.forms[0].founddocslist.length = 0;
  request = PrepareRequest(s).split("\x20");

  var docs = RecursiveSearch(0, true, []);
  if (!docs.length)
    alert("No matches found!");
  else
    for (var i = 0; i < docs.length; i++)
    {
      var e = document.createElement("OPTION");
      e.text = SearchTitles[docs[i]];
      e.value = SearchFiles[docs[i]];
      document.forms[0].founddocslist[document.forms[0].founddocslist.length] = e;
    }
  return true;
}

var w = null; 

function Hilight() {
  if ((w.document.readyState != 'complete') && (w.document.readyState != 'loaded'))
      var t = setTimeout('Hilight()', 100);
  else {
    var dbody = w.document.body;
    for (var r = 0; r < request.length; r++)
    if ((request[r] != "OR") && (request[r] != "AND"))
    {
       var rng = dbody.createTextRange();
       if (rng!=null) {
         for(var i=0; i<100; i++) {
         rng.moveStart("word", 1);
         if (!rng.findText(request[r])) break;
         rng.pasteHTML("<span style='background-color:#FFFF00'>" + 
           rng.text + "</span>");
         }
       }
    }
  }
}

function OpenFoundDoc()
{
  w = open(document.forms[0].founddocslist.options[document.forms[0].founddocslist.selectedIndex].value, 'content');
  if(browser=='ie') 
    Hilight();
}