MediaWiki:HotCat.js

/* Источник:  [[:en:User:TheDJ/Gadget-HotCat.js]]
  * HotCat: Adds an easy way to add, modify and remove categories 
  * Documentation: [[User:TheDJ/HotCat]]
  * Originally written by: Magnus Manske
  * 
  * This version was forked from http://commons.wikimedia.org/w/index.php?title=MediaWiki:Gadget-HotCat.js&oldid=10204404
  * Major changes:
  *   - blacklist code is disabled.
  *   - all code for the uploadForm has been removed
  *   - autocommit is disabled
  *   - will be enabled on pages without categories so that you can easily add them
  *   - uses javascript:void() as a dummy value for href in order to avoid a conflict with popups.
  *   - checks for {Uncategorized} and removes it if a category is added
  *   - does not use JSconfig for configuration options like its Commons original
  *   - tries to detect other categories and if possible, add to the end of them.
  *   - fixes a bug in the suggestion list with titles containing : character
  * [[User:TheDJ]] 2008-03-12
  <nowiki> */
var hotcat_running = 0;
var hotcat_last_v = "";
var hotcat_exists_yes = "http://upload.wikimedia.org/wikipedia/commons/thumb/b/be/P_yes.svg/20px-P_yes.svg.png";
var hotcat_exists_no = "http://upload.wikimedia.org/wikipedia/commons/thumb/4/42/P_no.svg/20px-P_no.svg.png";
 
var hotcat_no_autocommit = 0;
// In Commons hotcat_suggestion_delay is configurable trough JSconfig
var hotcat_suggestion_delay = 100;
 var hotcat_editbox_width = 80; 
var hotcat_suggestions = "searchindex";
 
var hotcat_old_onsubmit = null;
var hotcat_nosuggestions = false;
// hotcat_nosuggestions is set to true if we don't have XMLHttp! (On IE6, XMLHttp uses
// ActiveX, and the user may deny execution.) If true, no suggestions will ever be
// displayed, and there won't be any checking whether the category  exists.
// Lupo, 2008-01-20
 
var hotcat_modify_blacklist = new Array (
""
);
 
addOnloadHook ( hotcat );
 
function hotcat() {
  if ( hotcat_check_action() ) return; // Edited page, reloading anyway
 
  // Do not add interface to protected pages, if user has no edit permission
  // Also disable it on preview pages: on a preview, we *are* already editing,
  // and HotCat must not open the page for editing a second time. Lupo, 2008-02-27
  if( wgAction != "view" || document.getElementById('ca-viewsource' ) != null ||
      wgNamespaceNumber == -1 )
    return;
 
  // If we have no Categories div, then add one
  // TheDJ, 2008-02-28
 
  var visible_catlinks = document.getElementById ('mw-normal-catlinks') ||   getElementsByClassName ( document, "p", "catlinks" ) [0];
  var hidden_catlinks = document.getElementById ('mw-hidden-catlinks');
 var footer = getElementsByClassName ( document, "div", "printfooter" ) [0];
 
  dt =document.createElement ( "div" );
  dt.id = "rubtree";
  dt.className = "dtree";
 
  if ( visible_catlinks == null || typeof( visible_catlinks ) == 'undefined' ) {
    d3 = document.createElement ( "div" );
    d3.id = "mw-normal-catlinks";
    d3.innerHTML = '<a href="/wiki/Special:Categories" title="Служебная:Categories">Категории</a>: ';
    visible_catlinks = d3;
 
       if ( hidden_catlinks ) {
      // There are hidden categories.
      hidden_catlinks.parentNode.insertBefore( d3, hidden_catlinks );
      hidden_catlinks.parentNode.className = "catlinks";
    } else {
      // This page has no categories at all, lets create a section where we can add them.
 
      if( !footer ) return; // We have no idea where we should add this.
 
      d1 = document.createElement ( "div" );
      d1.id = "catlinks";
      d1.className = "catlinks";
      d1.appendChild ( d3 );
 
      footer.parentNode.insertBefore( d1, footer.nextSibling );
    } 
   }
 
  hotcat_modify_existing ( visible_catlinks );
  hotcat_append_add_span ( visible_catlinks );
 footer.parentNode.insertBefore( dt, footer.nextSibling );
 
 
}
 
function hotcat_append_add_span ( catline ) {
  var span_add = document.createElement ( "span" );
  var span_sep = document.createTextNode ( " | " );
  if ( catline.getElementsByTagName("span")[0] ) catline.appendChild ( span_sep );
  catline.appendChild ( span_add );
  hotcat_create_span ( span_add );
}
 
String.prototype.ucFirst = function() {
   return this.substr(0,1).toUpperCase() + this.substr(1,this.length);
}
 
function hotcat_is_on_blacklist ( cat_title ) {
  if ( !cat_title ) return 0;
  cat_title = cat_title.ucFirst.replace( /Категория:/gi, "" );
  for ( var i = 0; i < hotcat_modify_blacklist.length; i++ ) {
    if ( cat_title.substr ( 0, hotcat_modify_blacklist[i].length ) == hotcat_modify_blacklist[i] ) return 1;
  }
  return 0;
}
 
function hotcat_modify_span ( span, i ) {
  //var cat_title = span.firstChild.getAttribute ( "title" );
  // This fails with MW 1.13alpha if the category is a redlink, because MW 1.13alpha appends
  // [[MediaWiki:Red-link-title]] to the category name... we another way to get that category
  // name. Lupo, 2008-02-27
  var cat_title = span.firstChild.innerHTML; // without "Category:"
 
  var sep1 = document.createTextNode ( " " );
  var a1 = document.createTextNode ( "(−)" );
  var remove_link = document.createElement ( "a" );
  // Set the href to a dummy value to make sure we don't move if somehow the onclick handler
  // is bypassed.
  remove_link.href = "javascript:hotcat_remove(\""+cat_title+"\");";
  remove_link.onclick = hotcat_remove;
  remove_link.appendChild ( a1 );
  span.appendChild ( sep1 );
  span.appendChild ( remove_link );
 
  // Disabled blacklist check TheDJ, 2008-02-28
  // if ( hotcat_is_on_blacklist ( cat_title ) ) return;
  var mod_id = "hotcat_modify_" + i;
  var sep2 = document.createTextNode ( " " );
  var a2 = document.createTextNode ( "(±)" );
  var modify_link = document.createElement ( "a" );
  modify_link.id = mod_id;
  modify_link.href = "javascript:hotcat_modify(\"" + mod_id + "\");";
  modify_link.appendChild ( a2 );
  span.appendChild ( sep2 );
  span.appendChild ( modify_link );
}
 
function hotcat_modify_existing ( catline ) {
  var spans = catline.getElementsByTagName ( "span" );
  for ( var i = 0; i < spans.length; i++ ) {
    hotcat_modify_span ( spans[i], i );
  }
}
 
 
 
function hotcat_getEvt (evt) {
  return evt || window.event || window.Event; // Gecko, IE, Netscape
}
 
function hotcat_evt2node (evt) {
  var node = null;
  try {
    var e = hotcat_getEvt (evt);
    node = e.target;
    if (!node) node = e.srcElement;
  } catch (ex) {
    node = null;
  }
  return node;
}
 
function hotcat_evtkeys (evt) {
  var code = 0;
  try {
    var e = hotcat_getEvt (evt);
    if (typeof(e.ctrlKey) != 'undefined') { // All modern browsers
      if (e.ctrlKey)  code |= 1;
      if (e.shiftKey) code |= 2;
      if (e.altKey) code |= 4;
    } else if (typeof (e.modifiers) != 'undefined') { // Netscape...
      if (e.modifiers & Event.CONTROL_MASK) code |= 1;
      if (e.modifiers & Event.SHIFT_MASK)   code |= 2;
      if (e.modifiers & Event.ALT_MASK)   code |= 4;
    }
  } catch (ex) {
  }
  return code;
}
 
function hotcat_killEvt (evt)
{
  try {
    var e = hotcat_getEvt (evt);
    if (typeof (e.preventDefault) != 'undefined') {
      e.preventDefault();
      e.stopPropagation()
    } else
      e.cancelBubble = true;
  } catch (ex) {
  }
}
 
function hotcat_remove (evt) {
 //var node = hotcat_evt2node (evt);
 //if (!node) node=evt;
  // Get the category name from the original link to the category
 // var cat_title = node.parentNode.firstChild.innerHTML;
 var cat_title=evt;
  var editlk = document.getElementById('ca-edit').getElementsByTagName('a')[0].href;
  if ((hotcat_evtkeys (evt) & 1) || (hotcat_evtkeys (evt) & 4 )) // CTRL or ALT pressed?
    editlk = editlk + '&hotcat_nocommit=1';
  hotcat_killEvt (evt);
  document.location = editlk + '&hotcat_removecat=' + encodeURIComponent(cat_title);
  return false;
}
 
function hotcatGetParamValue(paramName, h) {
        if (typeof(h) == 'undefined' ) { h = document.location.href; }
        var cmdRe=RegExp('[&?]'+paramName+'=([^&]*)');
        var m=cmdRe.exec(h);
        if (m) {
                try {
                        return decodeURIComponent(m[1]);
                } catch (someError) {}
        }
        return null;
}
 
// New. Code by Lupo & Superm401, added by Lupo, 2008-02-2007
function hotcat_find_category (wikitext, category)
{
  var cat_name  = category.replace(/([\\\^\$\.\?\*\+\(\)])/g, "\\$1");
  var initial   = cat_name.substr (0, 1);
  var cat_regex = new RegExp ("\\[\\[\\s*(?:[Cc]ategory|[Кк]атегория)\\s*:\\s*"
                              + (initial == "\\"
                                 ? initial
                                 : "[" + initial.toUpperCase() + initial.toLowerCase() + "]")
                              + cat_name.substring (1).replace (/[ _]/g, "[ _]")
                              + "\\s*(\\|.*?)?\\]\\]", "g"
                             );
  var result = new Array();
  var curr_match  = null;
  while ((curr_match = cat_regex.exec (wikitext)) != null) {
    result [result.length] = {match : curr_match};
  }
  return result; // An array containing all matches, with positions, in result[i].match
}
 
// New. Code by TheDJ, 2008-03-12
function hotcat_find_ins ( wikitext )
{
  var re = /\[\[(?:Категория|Category):[^\]]+\]\]/ig
  var index = -1;
  while( re.exec(wikitext) != null ) index = re.lastIndex;
 
  if( index > -1) return index;
  //we should try to find interwiki links here, but that's for later.
 
  return -1;
}
 
// Rewritten (nearly) from scratch. Lupo, 2008-02-27
function hotcat_check_action() {
  var ret = 0;
  if (wgAction != 'edit' || typeof(document.editform) == "undefined" ) return ret; // Not an edit page, so not our business...
  var summary = new Array();
  var t = document.editform.wpTextbox1.value;
  var prevent_autocommit = 0;
  if (   (typeof (hotcat_no_autocommit) != "undefined" && hotcat_no_autocommit)
      || hotcatGetParamValue ('hotcat_nocommit') == '1')
    prevent_autocommit = 1;
 
  var cat_rm  = hotcatGetParamValue ('hotcat_removecat');
  var cat_add = hotcatGetParamValue ('hotcat_newcat');
  var cat_key = null;
  if (cat_rm != null && cat_rm.length > 0) {
    var matches = hotcat_find_category (t, cat_rm);
    if (!matches || matches.length == 0) {
      alert ('Категория «' + cat_rm + '» не найдена — возможно, она добавлена при помощи шаблона.');
      prevent_autocommit = 1;
    } else if (matches.length > 1) {
      alert ('Категория «' + cat_rm
             + "» встречается несколько раз — не ясно, какое из включений удалять.");
      prevent_autocommit = 1;
    } else {
      if (cat_add != null && cat_add.length > 0 && matches[0].match.length > 1)
        cat_key = matches[0].match[1]; // Remember the category key, if any.
      var t1 = t.substring (0, matches[0].match.index);
      var t2 = t.substring (matches[0].match.index + matches[0].match[0].length);
      // Remove whitespace (properly): strip whitespace, but only up to the next line feed.
      // If we then have two linefeeds in a row, remove one. Otherwise, if we have two non-
      // whitespace characters, insert a blank.
      var i = t1.length - 1;
      while (i >= 0 && t1.charAt (i) != '\n' && t1.substr (i, 1).search (/\s/) >= 0) i--;
      var j = 0;
      while (j < t2.length && t2.charAt (j) != '\n' && t1.substr (j, 1).search (/\s/) >= 0) j++;
      if (i >= 0 && t1.charAt (i) == '\n' && j < t2.length && t2.charAt (j) == '\n')
        i--;
      if (i >= 0) t1 = t1.substring (0, i+1); else t1 = "";
      if (j < t2.length) t2 = t2.substring (j); else t2 = "";
      if (t1.length > 0 && t1.substring (t1.length - 1).search (/\S/) >= 0
          && t2.length > 0 && t2.substr (0, 1).search (/\S/) >= 0)
        t1 = t1 + ' ';
      t = t1 + t2;
      summary.push ( "убрана категория «" + cat_rm + "»" );
      ret = 1;
    }
  }
  if (cat_add != null && cat_add.length > 0) {
    var matches = hotcat_find_category (t, cat_add);
    if (matches && matches.length > 0) {
      alert ('Категория «' + cat_add + '» уже присутствует — не добавляю.');
      prevent_autocommit = 1;
    } else {
      var insertionpoint = hotcat_find_ins( t );
      var newcatstring = '\n\[\[Категория:' + cat_add + (cat_key != null ? cat_key : "") + '\]\]';
      if( insertionpoint > -1 ) {
        t = t.substring(0, insertionpoint ) + newcatstring + t.substring( insertionpoint );
      } else {
        t = t + newcatstring;
      }
      summary.push ( "добавлена категория «" + cat_add + "»" );
      // Remove "uncategorized" and "cat" from "rq"
      var t2 = t.replace(/\{\{(uncategorized[^}]|nocat|нет категорий)*\}\}\n?/gi, '')
      t2 = t2.replace(/\{\{rq\s*(\|.*?)\}\}/ig, function(str, par){
        return '{{rq'+par.replace(/\|\s*cat(?!\w)/ig,'')+'}}' })
      t2 = t2.replace(/\{\{rq\}\}\n?/gi,'')
      if (t2.length != t.length) {
        t = t2;
        summary.push ( "убрано {{нет категорий}}" );
      }
      ret = 1;
    }
  }
  if (ret) {
    document.editform.wpTextbox1.value = t;
    document.editform.wpSummary.value = summary.join( "; " )
                                      + " с помощью [[ВП:HOTCAT|HotCat]]";
    document.editform.wpMinoredit.checked = true;
    if (!prevent_autocommit) {
      // Hide the entire edit section so as not to tempt the user into editing...
      var bodyContentId = document.getElementById("bodyContent") || document.getElementById("mw_contentholder");
      bodyContentId.style.display = "none";
      document.editform.submit();
    }
  }
  return ret;
}
 
function hotcat_clear_span ( span_add ) {
  while ( span_add.firstChild ) span_add.removeChild ( span_add.firstChild );
}
 
function hotcat_create_span ( span_add ) {
  hotcat_clear_span ( span_add );
  var a_add = document.createElement ( "a" );
  var a_text = document.createTextNode ( "(+)" );
  span_add.id = "hotcat_add";
  a_add.href = "javascript:hotcat_add_new()";
  a_add.appendChild ( a_text );
  span_add.appendChild ( a_add );
 
}
 
function hotcat_modify ( link_id ) {
  var link = document.getElementById ( link_id );
  var span = link.parentNode;
  var catname = span.firstChild.innerHTML; // was .firstChild.data. Just for consistency
 
  while ( span.firstChild.nextSibling ) span.removeChild ( span.firstChild.nextSibling );
  span.firstChild.style.display = "none";
  hotcat_create_new_span ( span, catname );
  hotcat_last_v = "";
  hotcat_text_changed(); // Update icon
}
 
function hotcat_add_new() {
  var span_add = document.getElementById ( "hotcat_add" );
  hotcat_clear_span ( span_add );
  hotcat_last_v = "";
  hotcat_create_new_span ( span_add, "" );
}
 
function hotcat_create_new_span ( thespan, init_text ) {
  var form = document.createElement ( "form" );
  form.method = "post";
  form.onsubmit = function() { hotcat_ok(); return false; }; 
  form.id = "hotcat_form";
  form.style.display = "inline";
 
  var list = null;
 
  if (!hotcat_nosuggestions) {
    // Only do this if we may actually use XMLHttp...
    list = document.createElement ( "select" );
    list.id = "hotcat_list";
    list.onclick = function()
      {
        var l = document.getElementById("hotcat_list");
        if (l != null)
          document.getElementById("hotcat_text").value = l.options[l.selectedIndex].text;
        hotcat_text_changed();
      };
    list.ondblclick = function (evt)
      {
        var l = document.getElementById("hotcat_list");
        if (l != null)
          document.getElementById("hotcat_text").value = l.options[l.selectedIndex].text;
        // Don't call text_changed here if on upload form: hotcat_ok will remove the list
        // anyway, so we must not ask for new suggestions since show_suggestions might
        // raise an exception if it tried to show a no longer existing list.
        // Lupo, 2008-01-20
        hotcat_text_changed();
        hotcat_ok((hotcat_evtkeys (evt) & 1) || (hotcat_evtkeys (evt) & 4)); // CTRL or ALT pressed?
      };
    list.style.display = "none";
	LoadRubrikatorLow();
}
 
  var text = document.createElement ( "input" );
  text.size = 40;
  text.id = "hotcat_text";
  text.type = "text";
  text.value = init_text;
  text.onkeyup = function() { window.setTimeout("hotcat_text_changed();", hotcat_suggestion_delay ); };
 
  var exists = null;
  if (!hotcat_nosuggestions) {
    exists = document.createElement ( "img" );
    exists.id = "hotcat_exists";
    exists.src = hotcat_exists_no;
  }
 
  var OK = document.createElement ( "input" );
  OK.type = "button";
  OK.value = "OK";
  OK.onclick = function (evt) { hotcat_ok ((hotcat_evtkeys (evt) & 1) || (hotcat_evtkeys (evt) & 4)); }; // CTRL or ALT pressed?
 
  var cancel = document.createElement ( "input" );
  cancel.type = "button";
  cancel.value = "Отмена";
  cancel.onclick = hotcat_cancel;
 
 
  var rub = document.createElement ( "input" );
  rub.type = "button";
  rub.value = "Показать рубрикатор";
  rub.onclick =LoadRubrikatorLow; 
 
  if (list != null) form.appendChild ( list );
  form.appendChild ( text );
  if (exists != null) form.appendChild ( exists );
  form.appendChild ( OK );
  form.appendChild ( cancel );
  form.appendChild ( rub );
 
  thespan.appendChild ( form );
  text.focus();
 
}
 
function hotcat_ok (nocommit) {
  var text = document.getElementById ( "hotcat_text" );
  var v = text.value;
 
  // Empty category ?
  if ( v == "" ) {
    hotcat_cancel();
    return;
  }
 
  var editlk = document.getElementById('ca-edit').getElementsByTagName('a')[0].href;
  var url = editlk + '&hotcat_newcat=' + encodeURIComponent( v );
 
  // Editing existing?
  var span = text.parentNode.parentNode; // span.form.text
  if ( span.id != "hotcat_add" ) { // Not plain "addition"   
    url += '&hotcat_removecat=' + span.firstChild.innerHTML;
  }
  if (nocommit) url = url + '&hotcat_nocommit=1';
  document.location = url;
}
 
function hotcat_just_add ( text ) {
  var span = document.getElementById("hotcat_form");
  while ( span.tagName != "SPAN" ) span = span.parentNode;
  var add = 0;
  if ( span.id == "hotcat_add" ) add = 1;
  span.id = "";
  while ( span.firstChild ) span.removeChild ( span.firstChild );
  var na = document.createElement ( "a" );
  na.href = wgArticlePath.split("$1").join( encodeURI ("Категория:" + text));
  na.appendChild ( document.createTextNode ( text ) );
  na.setAttribute ( "title", "Категория:" + text );
  span.appendChild ( na );
  var catline = getElementsByClassName ( document, "p", "catlinks" ) [0];
  if ( add ) hotcat_append_add_span ( catline );
 
  for ( var i = 0; i < span.parentNode.childNodes.length; i++ ) {
    if ( span.parentNode.childNodes[i] != span ) continue;
    hotcat_modify_span ( span, i );
    break;
  }
}
 
function hotcat_cancel() {
  var span = document.getElementById("hotcat_form").parentNode;
  if ( span.id == "hotcat_add" ) {
    hotcat_create_span ( span );
  } else {
    while ( span.firstChild.nextSibling ) span.removeChild ( span.firstChild.nextSibling );
    span.firstChild.style.display = "";
    for ( var i = 0; i < span.parentNode.childNodes.length; i++ ) {
      if ( span.parentNode.childNodes[i] != span ) continue;
      hotcat_modify_span ( span, i );
      break;
    }
  }
}
 
function hotcat_text_changed() {
  if ( hotcat_running ) return;
  var text = document.getElementById ( "hotcat_text" );
  var v = text.value.ucFirst();
  if ( hotcat_last_v == v ) return; // Nothing's changed...
 
  if (hotcat_nosuggestions) {
    // On IE, XMLHttp uses ActiveX, and the user may deny execution... just make sure
    // the list is not displayed.
    var list = document.getElementById ('hotcat_list');
    if (list != null) list.style.display = "none";
    var exists = document.getElementById ('hotcat_exists');
    if (exists != null) exists.style.display = "none";
    return;
  }
 
  hotcat_running = 1;
  hotcat_last_v = v;
 
  if ( v != "" ) {
    var url = wgServer + wgScriptPath
            + "/api.php?format=xml&action=query&list=allpages&apnamespace=14&apfrom="
            + encodeURIComponent( v );
    var request = sajax_init_object();
    if (request == null) {
      //Oops! We don't have XMLHttp...
      hotcat_nosuggestions = true;
      var list = document.getElementById ('hotcat_list');
      if (list != null) list.style.display = "none";
      var exists = document.getElementById ('hotcat_exists');
      if (exists != null) exists.style.display = "none";
      hotcat_running = 0;
      return;
    }	
    request.open('GET', url, true);
    request.onreadystatechange = function() {
          if (request.readyState == 4) {
            var xml = request.responseXML;
            if ( xml == null ) return;
            var pages = xml.getElementsByTagName( "p" );
            var titles = new Array();
            for ( var i = 0; i < pages.length; i++ ) {
              // Strip "Category:" but don't break on titles like "Category:Space: 2001 a space odyssey"
              var s = pages[i].getAttribute("title").replace( /Категория:/gi, "" );
              if ( s.substr ( 0, hotcat_last_v.length ) != hotcat_last_v ) break;
//Here check if in Ruricator
if(RubricatorString.indexOf(s)>0)
titles.push ( s );
            }
            hotcat_show_suggestions ( titles );
          }
      };
    request.setRequestHeader ('Pragma', 'cache=yes');
    request.setRequestHeader ('Cache-Control', 'no-transform');
    request.send(null);
  } else {
    hotcat_show_suggestions ( new Array() );
  }
  hotcat_running = 0;
}
 
function hotcat_show_suggestions ( titles ) {
  var text = document.getElementById ( "hotcat_text" );
  var list = document.getElementById ( "hotcat_list" );
  var icon = document.getElementById ( "hotcat_exists" );
  // Somehow, after a double click on the selection list, we still get here in IE, but
  // the list may no longer exist... Lupo, 2008-01-20
  if (list == null) return;
  if (hotcat_nosuggestions) {
    list.style.display = "none";
    if (icon != null) icon.style.display = "none";
    return;
  }
  if ( titles.length == 0 ) {
    list.style.display = "none";
    icon.src = hotcat_exists_no;
    return;
  }
 
  // Set list size to minimum of 5 and actual number of titles. Formerly was just 5.
  // Lupo, 2008-01-20
  list.size = (titles.length > 5 ? 5 : titles.length);
  // Avoid list height 1: double-click doesn't work in FF. Lupo, 2008-02-27
  if (list.size == 1) list.size = 2;
  list.style.align = "left";
  list.style.zIndex = 5;
  list.style.position = "absolute";
 
  // Was listh = titles.length * 20: that makes no sense if titles.length > list.size
  // Lupo, 2008-01-20
  var listh = list.size * 20;
  var nl = parseInt (text.offsetLeft) - 1;
  var nt = parseInt (text.offsetTop) - listh;
  list.style.top = nt + "px";
  list.style.width = text.offsetWidth + "px";
  list.style.height = listh + "px";
  list.style.left = nl + "px";
  while ( list.firstChild ) list.removeChild ( list.firstChild );
  for ( var i = 0; i < titles.length; i++ ) {
    var opt = document.createElement ( "option" );
    var ot = document.createTextNode ( titles[i] );
    opt.appendChild ( ot );
    //opt.value = titles[i];
    list.appendChild ( opt );
  }
 
  icon.src = hotcat_exists_yes;
 
  var nof_titles = titles.lenght;
  var first_title = titles.shift();
  var v = text.value.ucFirst();
  if ( first_title == v ) {
    if( nof_titles == 1 ) {
      // Only one result, and it's the same as whatever is in the input box: makes no sense
      // to show the list. But make sure the text field has the focus !
      text.focus();
      list.style.display = "none";
    }
    return;
  }
  list.style.display = "block";
 
  // Put the first entry of the title list into the text field, and select the
  // new suffix such that it'll be overwritten if the user keeps typing.
  // ONLY do this if we have a way to select parts of the content of a text
  // field, otherwise, this is very annoying for the user. Note: IE does it
  // again differently from the two versions previously implemented.
  // Lupo, 2008-01-20
  // Only put first entry into the list if the user hasn't typed something 
  // conflicting yet Dschwen 2008-02-18
  if ( ( text.setSelectionRange ||
         text.createTextRange ||
         typeof (text.selectionStart) != 'undefined' &&
         typeof (text.selectionEnd) != 'undefined' ) &&
         v == first_title.substr(0,v.length) )
  {
    // taking hotcat_last_v was a major annoyance, 
    // since it constantly killed text that was typed in
    // _since_ the last AJAX request was fired! Dschwen 2008-02-18
    var nosel = v.length;
 
    text.value = first_title;
 
    if (text.setSelectionRange)      // e.g. khtml
      text.setSelectionRange (nosel, first_title.length);
    else if (text.createTextRange) { // IE
      var new_selection = text.createTextRange();
      new_selection.move ("character", nosel);
      new_selection.moveEnd ("character", first_title.length - nosel);
      new_selection.select();
    } else {
      text.selectionStart = nosel;
      text.selectionEnd   = first_title.length;
    }
  }
}
/* </nowiki> */