/** $Id: domTT.js 2324 2006-06-12 07:06:39Z dallen $ */
// {{{ license

/*
 * Copyright 2002-2005 Dan Allen, Mojavelinux.com (dan.allen@mojavelinux.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// }}}
// {{{ intro

/**
 * Title: DOM Tooltip Library
 * Version: 0.7.3
 *
 * Summary:
 * Allows developers to add custom tooltips to the webpages.  Tooltips are
 * generated using the domTT_activate() function and customized by setting
 * a handful of options.
 *
 * Maintainer: Dan Allen <dan.allen@mojavelinux.com>
 * Contributors:
 *     Josh Gross <josh@jportalhome.com>
 *    Jason Rust <jason@rustyparts.com>
 *
 * License: Apache 2.0
 * However, if you use this library, you earn the position of official bug
 * reporter :) Please post questions or problem reports to the newsgroup:
 *
 *   http://groups-beta.google.com/group/dom-tooltip
 *
 * If you are doing this for commercial work, perhaps you could send me a few
 * Starbucks Coffee gift dollars or PayPal bucks to encourage future
 * developement (NOT REQUIRED).  E-mail me for my snail mail address.

 *
 * Homepage: http://www.mojavelinux.com/projects/domtooltip/
 *
 * Newsgroup: http://groups-beta.google.com/group/dom-tooltip
 *
 * Freshmeat Project: http://freshmeat.net/projects/domtt/?topic_id=92
 *
 * Updated: 2005/07/16
 *
 * Supported Browsers:
 * Mozilla (Gecko), IE 5.5+, IE on Mac, Safari, Konqueror, Opera 7
 *
 * Usage:
 * Please see the HOWTO documentation.
**/

// }}}
// {{{ settings (editable)

// IE mouse events seem to be off by 2 pixels
var domTT_offsetX = (domLib_isIE ? -2 : 0);
var domTT_offsetY = (domLib_isIE ? 4 : 2);
var domTT_direction = 'southeast';
var domTT_mouseHeight = domLib_isIE ? 13 : 19;
var domTT_closeLink = 'X';
var domTT_closeAction = 'hide';
var domTT_activateDelay = 0;
var domTT_maxWidth = false;
var domTT_styleClass = 'domTT';
var domTT_fade = 'neither';
var domTT_lifetime = 0;
var domTT_grid = 0;
var domTT_trailDelay = 200;
var domTT_useGlobalMousePosition = true;
var domTT_postponeActivation = false;
var domTT_tooltipIdPrefix = '[domTT]';
var domTT_screenEdgeDetection = true;
var domTT_screenEdgePadding = 4;
var domTT_oneOnly = false;
var domTT_cloneNodes = false;
var domTT_detectCollisions = true;
var domTT_bannedTags = ['OPTION'];
var domTT_draggable = false;
if (typeof(domTT_dragEnabled) == 'undefined')
{
  domTT_dragEnabled = false;
}

// }}}
// {{{ globals (DO NOT EDIT)

var domTT_predefined = new Hash();
// tooltips are keyed on both the tip id and the owner id,
// since events can originate on either object
var domTT_tooltips = new Hash();
var domTT_lastOpened = 0;
var domTT_documentLoaded = false;
var domTT_mousePosition = null;

// }}}
// {{{ document.onmousemove

if (domLib_useLibrary && domTT_useGlobalMousePosition)
{
  document.onmousemove = function(in_event)
  {
    if (typeof(in_event) == 'undefined') { in_event = window.event; }

    domTT_mousePosition = domLib_getEventPosition(in_event);
    if (domTT_dragEnabled && domTT_dragMouseDown)
    {
      domTT_dragUpdate(in_event);
    }
  }
}

// }}}
// {{{ domTT_activate()

function domTT_activate(in_this, in_event)
{
  if (!domLib_useLibrary || (domTT_postponeActivation && !domTT_documentLoaded)) { return false; }

  // make sure in_event is set (for IE, some cases we have to use window.event)
  if (typeof(in_event) == 'undefined') { in_event = window.event;  }

  // don't allow tooltips on banned tags (such as OPTION)
  if (in_event != null) {
    var target = in_event.srcElement ? in_event.srcElement : in_event.target;
    if (target != null && (',' + domTT_bannedTags.join(',') + ',').indexOf(',' + target.tagName + ',') != -1)
    {
      return false;
    }
  }

  var owner = document.body;
  // we have an active event so get the owner
  if (in_event != null && in_event.type.match(/key|mouse|click|contextmenu/i))
  {
    // make sure we have nothing higher than the body element
    if (in_this.nodeType && in_this.nodeType != document.DOCUMENT_NODE)
    {
      owner = in_this;
    }
  }
  // non active event (make sure we were passed a string id)
  else
  {
    if (typeof(in_this) != 'object' && !(owner = domTT_tooltips.get(in_this)))
    {
      // NOTE: two steps to avoid "flashing" in gecko
      var embryo = document.createElement('div');
      owner = document.body.appendChild(embryo);
      owner.style.display = 'none';
      owner.id = in_this;
    }
  }

  // make sure the owner has a unique id
  if (!owner.id)
  {
    owner.id = '__autoId' + domLib_autoId++;
  }

  // see if we should only be opening one tip at a time
  // NOTE: this is not "perfect" yet since it really steps on any other
  // tip working on fade out or delayed close, but it get's the job done
  if (domTT_oneOnly && domTT_lastOpened)
  {
    domTT_deactivate(domTT_lastOpened);
  }

  domTT_lastOpened = owner.id;

  var tooltip = domTT_tooltips.get(owner.id);
  if (tooltip)
  {
    if (tooltip.get('eventType') != in_event.type)
    {
      if (tooltip.get('type') == 'greasy')
      {
        tooltip.set('closeAction', 'destroy');
        domTT_deactivate(owner.id);
      }
      else if (tooltip.get('status') != 'inactive')
      {
        return owner.id;
      }
    }
    else
    {
      if (tooltip.get('status') == 'inactive')
      {
        tooltip.set('status', 'pending');
        tooltip.set('activateTimeout', domLib_setTimeout(domTT_runShow, tooltip.get('delay'), [owner.id, in_event]));

        return owner.id;
      }
      // either pending or active, let it be
      else
      {
        return owner.id;
      }
    }
  }

  // setup the default options hash
  var options = new Hash(
    'caption',    '',
    'content',    '',
    'clearMouse',  true,
    'closeAction',  domTT_closeAction,
    'closeLink',  domTT_closeLink,
    'delay',    domTT_activateDelay,
    'direction',  domTT_direction,
    'draggable',  domTT_draggable,
    'fade',      domTT_fade,
    'fadeMax',    100,
    'grid',      domTT_grid,
    'id',      domTT_tooltipIdPrefix + owner.id,
    'inframe',    false,
    'lifetime',    domTT_lifetime,
    'offsetX',    domTT_offsetX,
    'offsetY',    domTT_offsetY,
    'parent',    document.body,
    'position',    'absolute',
    'styleClass',  domTT_styleClass,
    'type',      'greasy',
    'trail',    false,
    'lazy',      false
  );

  // load in the options from the function call
  for (var i = 2; i < arguments.length; i += 2)
  {
    // load in predefined
    if (arguments[i] == 'predefined')
    {
      var predefinedOptions = domTT_predefined.get(arguments[i + 1]);
      for (var j in predefinedOptions.elementData)
      {
        options.set(j, predefinedOptions.get(j));
      }
    }
    // set option
    else
    {
      options.set(arguments[i], arguments[i + 1]);
    }
  }

  options.set('eventType', in_event != null ? in_event.type : null);

  // immediately set the status text if provided
  if (options.has('statusText'))
  {
    try { window.status = options.get('statusText'); } catch(e) {}
  }

  // if we didn't give content...assume we just wanted to change the status and return
  if (!options.has('content') || options.get('content') == '' || options.get('content') == null)
  {
    if (typeof(owner.onmouseout) != 'function')
    {
      owner.onmouseout = function(in_event) { domTT_mouseout(this, in_event); };
    }

    return owner.id;
  }

  options.set('owner', owner);

  domTT_create(options);

  // determine the show delay
  options.set('delay', (in_event != null && in_event.type.match(/click|mousedown|contextmenu/i)) ? 0 : parseInt(options.get('delay')));
  domTT_tooltips.set(owner.id, options);
  domTT_tooltips.set(options.get('id'), options);
  options.set('status', 'pending');
  options.set('activateTimeout', domLib_setTimeout(domTT_runShow, options.get('delay'), [owner.id, in_event]));

  return owner.id;
}

// }}}
// {{{ domTT_create()

function domTT_create(in_options)
{
  var tipOwner = in_options.get('owner');
  var parentObj = in_options.get('parent');
  var parentDoc = parentObj.ownerDocument || parentObj.document;

  // create the tooltip and hide it
  // NOTE: two steps to avoid "flashing" in gecko
  var embryo = parentDoc.createElement('div');
  var tipObj = parentObj.appendChild(embryo);
  tipObj.style.position = 'absolute';
  tipObj.style.left = '0px';
  tipObj.style.top = '0px';
  tipObj.style.visibility = 'hidden';
  tipObj.id = in_options.get('id');
  tipObj.className = in_options.get('styleClass');

  var contentBlock;
  var tableLayout = false;

  if (in_options.get('caption') || (in_options.get('type') == 'sticky' && in_options.get('caption') !== false))
  {
    tableLayout = true;
    // layout the tip with a hidden formatting table
    var tipLayoutTable = tipObj.appendChild(parentDoc.createElement('table'));
    tipLayoutTable.style.borderCollapse = 'collapse';
    if (domLib_isKHTML)
    {
      tipLayoutTable.cellSpacing = 0;
    }

    var tipLayoutTbody = tipLayoutTable.appendChild(parentDoc.createElement('tbody'));

    var numCaptionCells = 0;
    var captionRow = tipLayoutTbody.appendChild(parentDoc.createElement('tr'));
    var captionCell = captionRow.appendChild(parentDoc.createElement('td'));
    captionCell.style.padding = '0px';
    var caption = captionCell.appendChild(parentDoc.createElement('div'));
    caption.className = 'caption';
    if (domLib_isIE50)
    {
      caption.style.height = '100%';
    }

    if (in_options.get('caption').nodeType)
    {
      caption.appendChild(domTT_cloneNodes ? in_options.get('caption').cloneNode(1) : in_options.get('caption'));
    }
    else
    {
      caption.innerHTML = in_options.get('caption');
    }

    if (in_options.get('type') == 'sticky')
    {
      var numCaptionCells = 2;
      var closeLinkCell = captionRow.appendChild(parentDoc.createElement('td'));
      closeLinkCell.style.padding = '0px';
      var closeLink = closeLinkCell.appendChild(parentDoc.createElement('div'));
      closeLink.className = 'caption';
      if (domLib_isIE50)
      {
        closeLink.style.height = '100%';
      }

      closeLink.style.textAlign = 'right';
      closeLink.style.cursor = domLib_stylePointer;
      // merge the styles of the two cells
      closeLink.style.borderLeftWidth = caption.style.borderRightWidth = '0px';
      closeLink.style.paddingLeft = caption.style.paddingRight = '0px';
      closeLink.style.marginLeft = caption.style.marginRight = '0px';
      if (in_options.get('closeLink').nodeType)
      {
        closeLink.appendChild(in_options.get('closeLink').cloneNode(1));
      }
      else
      {
        closeLink.innerHTML = in_options.get('closeLink');
      }

      closeLink.onclick = function()
      {
        domTT_deactivate(tipOwner.id);
      };
      closeLink.onmousedown = function(in_event)
      {
        if (typeof(in_event) == 'undefined') { in_event = window.event; }
        in_event.cancelBubble = true;
      };
      // MacIE has to have a newline at the end and must be made with createTextNode()
      if (domLib_isMacIE)
      {
        closeLinkCell.appendChild(parentDoc.createTextNode("\n"));
      }
    }

    // MacIE has to have a newline at the end and must be made with createTextNode()
    if (domLib_isMacIE)
    {
      captionCell.appendChild(parentDoc.createTextNode("\n"));
    }

    var contentRow = tipLayoutTbody.appendChild(parentDoc.createElement('tr'));
    var contentCell = contentRow.appendChild(parentDoc.createElement('td'));
    contentCell.style.padding = '0px';
    if (numCaptionCells)
    {
      if (domLib_isIE || domLib_isOpera)
      {
        contentCell.colSpan = numCaptionCells;
      }
      else
      {
        contentCell.setAttribute('colspan', numCaptionCells);
      }
    }

    contentBlock = contentCell.appendChild(parentDoc.createElement('div'));
    if (domLib_isIE50)
    {
      contentBlock.style.height = '100%';
    }
  }
  else
  {
    contentBlock = tipObj.appendChild(parentDoc.createElement('div'));
  }

  contentBlock.className = 'contents';

  var content = in_options.get('content');
  // allow content has a function to return the actual content
  if (typeof(content) == 'function') {
    content = content(in_options.get('id'));
  }

  if (content != null && content.nodeType)
  {
    contentBlock.appendChild(domTT_cloneNodes ? content.cloneNode(1) : content);
  }
  else
  {
    contentBlock.innerHTML = content;
  }

  // adjust the width if specified
  if (in_options.has('width'))
  {
    tipObj.style.width = parseInt(in_options.get('width')) + 'px';
  }

  // check if we are overridding the maxWidth
  // if the browser supports maxWidth, the global setting will be ignored (assume stylesheet)
  var maxWidth = domTT_maxWidth;
  if (in_options.has('maxWidth'))
  {
    if ((maxWidth = in_options.get('maxWidth')) === false)
    {
      tipObj.style.maxWidth = domLib_styleNoMaxWidth;
    }
    else
    {
      maxWidth = parseInt(in_options.get('maxWidth'));
      tipObj.style.maxWidth = maxWidth + 'px';
    }
  }

  // HACK: fix lack of maxWidth in CSS for KHTML and IE
  if (maxWidth !== false && (domLib_isIE || domLib_isKHTML) && tipObj.offsetWidth > maxWidth)
  {
    tipObj.style.width = maxWidth + 'px';
  }

  in_options.set('offsetWidth', tipObj.offsetWidth);
  in_options.set('offsetHeight', tipObj.offsetHeight);

  // konqueror miscalcuates the width of the containing div when using the layout table based on the
  // border size of the containing div
  if (domLib_isKonq && tableLayout && !tipObj.style.width)
  {
    var left = document.defaultView.getComputedStyle(tipObj, '').getPropertyValue('border-left-width');
    var right = document.defaultView.getComputedStyle(tipObj, '').getPropertyValue('border-right-width');
    
    left = left.substring(left.indexOf(':') + 2, left.indexOf(';'));
    right = right.substring(right.indexOf(':') + 2, right.indexOf(';'));
    var correction = 2 * ((left ? parseInt(left) : 0) + (right ? parseInt(right) : 0));
    tipObj.style.width = (tipObj.offsetWidth - correction) + 'px';
  }

  // if a width is not set on an absolutely positioned object, both IE and Opera
  // will attempt to wrap when it spills outside of body...we cannot have that
  if (domLib_isIE || domLib_isOpera)
  {
    if (!tipObj.style.width)
    {
      // HACK: the correction here is for a border
      tipObj.style.width = (tipObj.offsetWidth - 2) + 'px';
    }

    // HACK: the correction here is for a border
    tipObj.style.height = (tipObj.offsetHeight - 2) + 'px';
  }

  // store placement offsets from event position
  var offsetX, offsetY;

  // tooltip floats
  if (in_options.get('position') == 'absolute' && !(in_options.has('x') && in_options.has('y')))
  {
    // determine the offset relative to the pointer
    switch (in_options.get('direction'))
    {
      case 'northeast':
        offsetX = in_options.get('offsetX');
        offsetY = 0 - tipObj.offsetHeight - in_options.get('offsetY');
      break;
      case 'northwest':
        offsetX = 0 - tipObj.offsetWidth - in_options.get('offsetX');
        offsetY = 0 - tipObj.offsetHeight - in_options.get('offsetY');
      break;
      case 'north':
        offsetX = 0 - parseInt(tipObj.offsetWidth/2);
        offsetY = 0 - tipObj.offsetHeight - in_options.get('offsetY');
      break;
      case 'southwest':
        offsetX = 0 - tipObj.offsetWidth - in_options.get('offsetX');
        offsetY = in_options.get('offsetY');
      break;
      case 'southeast':
        offsetX = in_options.get('offsetX');
        offsetY = in_options.get('offsetY');
      break;
      case 'south':
        offsetX = 0 - parseInt(tipObj.offsetWidth/2);
        offsetY = in_options.get('offsetY');
      break;
    }

    // if we are in an iframe, get the offsets of the iframe in the parent document
    if (in_options.get('inframe'))
    {
      var iframeObj = domLib_getIFrameReference(window);
      if (iframeObj)
      {
        var frameOffsets = domLib_getOffsets(iframeObj);
        offsetX += frameOffsets.get('left');
        offsetY += frameOffsets.get('top');
      }
    }
  }
  // tooltip is fixed
  else
  {
    offsetX = 0;
    offsetY = 0;
    in_options.set('trail', false);
  }

  // set the direction-specific offsetX/Y
  in_options.set('offsetX', offsetX);
  in_options.set('offsetY', offsetY);
  if (in_options.get('clearMouse') && in_options.get('direction').indexOf('south') != -1)
  {
    in_options.set('mouseOffset', domTT_mouseHeight);
  }
  else
  {
    in_options.set('mouseOffset', 0);
  }

  if (domLib_canFade && typeof(Fadomatic) == 'function')
  {
    if (in_options.get('fade') != 'neither')
    {
      var fadeHandler = new Fadomatic(tipObj, 10, 0, 0, in_options.get('fadeMax'));
      in_options.set('fadeHandler', fadeHandler);
    }
  }
  else
  {
    in_options.set('fade', 'neither');
  }

  // setup mouse events
  if (in_options.get('trail') && typeof(tipOwner.onmousemove) != 'function')
  {
    tipOwner.onmousemove = function(in_event) { domTT_mousemove(this, in_event); };
  }

  if (typeof(tipOwner.onmouseout) != 'function')
  {
    tipOwner.onmouseout = function(in_event) { domTT_mouseout(this, in_event); };
  }

  if (in_options.get('type') == 'sticky')
  {
    if (in_options.get('position') == 'absolute' && domTT_dragEnabled && in_options.get('draggable'))
    {
      if (domLib_isIE)
      {
        captionRow.onselectstart = function() { return false; };
      }

      // setup drag
      captionRow.onmousedown = function(in_event) { domTT_dragStart(tipObj, in_event);  };
      captionRow.onmousemove = function(in_event) { domTT_dragUpdate(in_event); };
      captionRow.onmouseup = function() { domTT_dragStop(); };
    }
  }
  else if (in_options.get('type') == 'velcro')
  {
    /* can use once we have deactivateDelay
    tipObj.onmouseover = function(in_event)
    {
      if (typeof(in_event) == 'undefined') { in_event = window.event; }
      var tooltip = domTT_tooltips.get(tipObj.id);
      if (in_options.get('lifetime')) {
        domLib_clearTimeout(in_options.get('lifetimeTimeout');
      }
    };
    */
    tipObj.onmouseout = function(in_event)
    {
      if (typeof(in_event) == 'undefined') { in_event = window.event; }
      if (!domLib_isDescendantOf(in_event[domLib_eventTo], tipObj, domTT_bannedTags)) {
        domTT_deactivate(tipOwner.id);
      }
    };
    // NOTE: this might interfere with links in the tip
    tipObj.onclick = function(in_event)
    {
      domTT_deactivate(tipOwner.id);
    };
  }

  if (in_options.get('position') == 'relative')
  {
    tipObj.style.position = 'relative';
  }

  in_options.set('node', tipObj);
  in_options.set('status', 'inactive');
}

// }}}
// {{{ domTT_show()

// in_id is either tip id or the owner id
function domTT_show(in_id, in_event)
{

  // should always find one since this call would be cancelled if tip was killed
  var tooltip = domTT_tooltips.get(in_id);
  var status = tooltip.get('status');
  var tipObj = tooltip.get('node');

  if (tooltip.get('position') == 'absolute')
  {
    var mouseX, mouseY;

    if (tooltip.has('x') && tooltip.has('y'))
    {
      mouseX = tooltip.get('x');
      mouseY = tooltip.get('y');
    }
    else if (!domTT_useGlobalMousePosition || domTT_mousePosition == null || status == 'active' || tooltip.get('delay') == 0)
    {
      var eventPosition = domLib_getEventPosition(in_event);
      var eventX = eventPosition.get('x');
      var eventY = eventPosition.get('y');
      if (tooltip.get('inframe'))
      {
        eventX -= eventPosition.get('scrollX');
        eventY -= eventPosition.get('scrollY');
      }

      // only move tip along requested trail axis when updating position
      if (status == 'active' && tooltip.get('trail') !== true)
      {
        var trail = tooltip.get('trail');
        if (trail == 'x')
        {
          mouseX = eventX;
          mouseY = tooltip.get('mouseY');
        }
        else if (trail == 'y')
        {
          mouseX = tooltip.get('mouseX');
          mouseY = eventY;
        }
      }
      else
      {
        mouseX = eventX;
        mouseY = eventY;
      }
    }
    else
    {
      mouseX = domTT_mousePosition.get('x');
      mouseY = domTT_mousePosition.get('y');
      if (tooltip.get('inframe'))
      {
        mouseX -= domTT_mousePosition.get('scrollX');
        mouseY -= domTT_mousePosition.get('scrollY');
      }
    }

    // we are using a grid for updates
    if (tooltip.get('grid'))
    {
      // if this is not a mousemove event or it is a mousemove event on an active tip and
      // the movement is bigger than the grid
      if (in_event.type != 'mousemove' || (status == 'active' && (Math.abs(tooltip.get('lastX') - mouseX) > tooltip.get('grid') || Math.abs(tooltip.get('lastY') - mouseY) > tooltip.get('grid'))))
      {
        tooltip.set('lastX', mouseX);
        tooltip.set('lastY', mouseY);
      }
      // did not satisfy the grid movement requirement
      else
      {
        return false;
      }
    }

    // mouseX and mouseY store the last acknowleged mouse position,
    // good for trailing on one axis
    tooltip.set('mouseX', mouseX);
    tooltip.set('mouseY', mouseY);

    var coordinates;
    if (domTT_screenEdgeDetection)
    {
      coordinates = domTT_correctEdgeBleed(
        tooltip.get('offsetWidth'),
        tooltip.get('offsetHeight'),
        mouseX,
        mouseY,
        tooltip.get('offsetX'),
        tooltip.get('offsetY'),
        tooltip.get('mouseOffset'),
        tooltip.get('inframe') ? window.parent : window
      );
    }
    else
    {
      coordinates = {
        'x' : mouseX + tooltip.get('offsetX'),
        'y' : mouseY + tooltip.get('offsetY') + tooltip.get('mouseOffset')
      };
    }

    // update the position
    tipObj.style.left = coordinates.x + 'px';
    tipObj.style.top = coordinates.y + 'px';

    // increase the tip zIndex so it goes over previously shown tips
    tipObj.style.zIndex = domLib_zIndex++;
  }

  // if tip is not active, active it now and check for a fade in
  if (status == 'pending')
  {
    // unhide the tooltip
    tooltip.set('status', 'active');
    tipObj.style.display = '';
    tipObj.style.visibility = 'visible';

    var fade = tooltip.get('fade');
    if (fade != 'neither')
    {
      var fadeHandler = tooltip.get('fadeHandler');
      if (fade == 'out' || fade == 'both')
      {
        fadeHandler.haltFade();
        if (fade == 'out')
        {
          fadeHandler.halt();
        }
      }

      if (fade == 'in' || fade == 'both')
      {
        fadeHandler.fadeIn();
      }
    }

    if (tooltip.get('type') == 'greasy' && tooltip.get('lifetime') != 0)
    {
      tooltip.set('lifetimeTimeout', domLib_setTimeout(domTT_runDeactivate, tooltip.get('lifetime'), [tipObj.id]));
    }
  }

  if (tooltip.get('position') == 'absolute' && domTT_detectCollisions)
  {
    // utilize original collision element cache
    domLib_detectCollisions(tipObj, false, true);
  }
}

// }}}
// {{{ domTT_close()

// in_handle can either be an child object of the tip, the tip id or the owner id
function domTT_close(in_handle)
{
  var id;
  if (typeof(in_handle) == 'object' && in_handle.nodeType)
  {
    var obj = in_handle;
    while (!obj.id || !domTT_tooltips.get(obj.id))
    {
      obj = obj.parentNode;
  
      if (obj.nodeType != document.ELEMENT_NODE) { return; }
    }

    id = obj.id;
  }
  else
  {
    id = in_handle;
  }

  domTT_deactivate(id);
}

// }}}
// {{{ domTT_closeAll()

// run through the tooltips and close them all
function domTT_closeAll()
{
  // NOTE: this will iterate 2x # of tooltips
  for (var id in domTT_tooltips.elementData) {
    domTT_close(id);
  }
}

// }}}
// {{{ domTT_deactivate()

// in_id is either the tip id or the owner id
function domTT_deactivate(in_id)
{
  var tooltip = domTT_tooltips.get(in_id);
  if (tooltip)
  {
    var status = tooltip.get('status');
    if (status == 'pending')
    {
      // cancel the creation of this tip if it is still pending
      domLib_clearTimeout(tooltip.get('activateTimeout'));
      tooltip.set('status', 'inactive');
    }
    else if (status == 'active')
    {
      if (tooltip.get('lifetime'))
      {
        domLib_clearTimeout(tooltip.get('lifetimeTimeout'));
      }

      var tipObj = tooltip.get('node');
      if (tooltip.get('closeAction') == 'hide')
      {
        var fade = tooltip.get('fade');
        if (fade != 'neither')
        {
          var fadeHandler = tooltip.get('fadeHandler');
          if (fade == 'out' || fade == 'both')
          {
            fadeHandler.fadeOut();
          }
          else
          {
            fadeHandler.hide();
          }
        }
        else
        {
          tipObj.style.display = 'none';
        }
      }
      else

      {
        tooltip.get('parent').removeChild(tipObj);
        domTT_tooltips.remove(tooltip.get('owner').id);
        domTT_tooltips.remove(tooltip.get('id'));
      }

      tooltip.set('status', 'inactive');
      if (domTT_detectCollisions) {
        // unhide all of the selects that are owned by this object
        // utilize original collision element cache
        domLib_detectCollisions(tipObj, true, true); 
      }
    }
  }
}

// }}}
// {{{ domTT_mouseout()

function domTT_mouseout(in_owner, in_event)
{
  if (!domLib_useLibrary) { return false; }

  if (typeof(in_event) == 'undefined') { in_event = window.event;  }

  var toChild = domLib_isDescendantOf(in_event[domLib_eventTo], in_owner, domTT_bannedTags);
  var tooltip = domTT_tooltips.get(in_owner.id);
  if (tooltip && (tooltip.get('type') == 'greasy' || tooltip.get('status') != 'active'))
  {
    // deactivate tip if exists and we moved away from the owner
    if (!toChild)
    {
      domTT_deactivate(in_owner.id);
      try { window.status = window.defaultStatus; } catch(e) {}
    }
  }
  else if (!toChild)
  {
    try { window.status = window.defaultStatus; } catch(e) {}
  }
}

// }}}
// {{{ domTT_mousemove()

function domTT_mousemove(in_owner, in_event)
{
  if (!domLib_useLibrary) { return false; }

  if (typeof(in_event) == 'undefined') { in_event = window.event;  }

  var tooltip = domTT_tooltips.get(in_owner.id);
  if (tooltip && tooltip.get('trail') && tooltip.get('status') == 'active')
  {
    // see if we are trailing lazy
    if (tooltip.get('lazy'))
    {
      domLib_setTimeout(domTT_runShow, domTT_trailDelay, [in_owner.id, in_event]);
    }
    else
    {
      domTT_show(in_owner.id, in_event);
    }
  }
}

// }}}
// {{{ domTT_addPredefined()

function domTT_addPredefined(in_id)
{
  var options = new Hash();
  for (var i = 1; i < arguments.length; i += 2)
  {
    options.set(arguments[i], arguments[i + 1]);
  }

  domTT_predefined.set(in_id, options);
}

// }}}
// {{{ domTT_correctEdgeBleed()

function domTT_correctEdgeBleed(in_width, in_height, in_x, in_y, in_offsetX, in_offsetY, in_mouseOffset, in_window)
{
  var win, doc;
  var bleedRight, bleedBottom;
  var pageHeight, pageWidth, pageYOffset, pageXOffset;

  var x = in_x + in_offsetX;
  var y = in_y + in_offsetY + in_mouseOffset;

  win = (typeof(in_window) == 'undefined' ? window : in_window);

  // Gecko and IE swaps values of clientHeight, clientWidth properties when
  // in standards compliance mode from documentElement to document.body
  doc = ((domLib_standardsMode && (domLib_isIE || domLib_isGecko)) ? win.document.documentElement : win.document.body);

  // for IE in compliance mode
  if (domLib_isIE)
  {
    pageHeight = doc.clientHeight;
    pageWidth = doc.clientWidth;
    pageYOffset = doc.scrollTop;
    pageXOffset = doc.scrollLeft;
  }
  else
  {
    pageHeight = doc.clientHeight;
    pageWidth = doc.clientWidth;

    if (domLib_isKHTML)
    {
      pageHeight = win.innerHeight;
    }

    pageYOffset = win.pageYOffset;
    pageXOffset = win.pageXOffset;
  }

  // we are bleeding off the right, move tip over to stay on page
  // logic: take x position, add width and subtract from effective page width
  if ((bleedRight = (x - pageXOffset) + in_width - (pageWidth - domTT_screenEdgePadding)) > 0)
  {
    x -= bleedRight;
  }

  // we are bleeding to the left, move tip over to stay on page
  // if tip doesn't fit, we will go back to bleeding off the right
  // logic: take x position and check if less than edge padding
  if ((x - pageXOffset) < domTT_screenEdgePadding)
  {
    x = domTT_screenEdgePadding + pageXOffset;
  }

  // if we are bleeding off the bottom, flip to north
  // logic: take y position, add height and subtract from effective page height
  if ((bleedBottom = (y - pageYOffset) + in_height - (pageHeight - domTT_screenEdgePadding)) > 0)
  {
    y = in_y - in_height - in_offsetY;
  }

  // if we are bleeding off the top, flip to south
  // if tip doesn't fit, we will go back to bleeding off the bottom
  // logic: take y position and check if less than edge padding
  if ((y - pageYOffset) < domTT_screenEdgePadding)
  {
    y = in_y + domTT_mouseHeight + in_offsetY;
  }

  return {'x' : x, 'y' : y};
}

// }}}
// {{{ domTT_isActive()

// in_id is either the tip id or the owner id
function domTT_isActive(in_id)
{
  var tooltip = domTT_tooltips.get(in_id);
  if (!tooltip || tooltip.get('status') != 'active')
  {
    return false;
  }
  else
  {
    return true;
  }
}

// }}}
// {{{ domTT_runXXX()

// All of these domMenu_runXXX() methods are used by the event handling sections to
// avoid the circular memory leaks caused by inner functions
function domTT_runDeactivate(args) { domTT_deactivate(args[0]); }
function domTT_runShow(args) { domTT_show(args[0], args[1]); }

// }}}
// {{{ domTT_replaceTitles()

function domTT_replaceTitles(in_decorator)
{
  var elements = domLib_getElementsByClass('tooltip');
  for (var i = 0; i < elements.length; i++)
  {
    if (elements[i].title)
    {
      var content;
      if (typeof(in_decorator) == 'function')
      {
        content = in_decorator(elements[i]);
      }
      else
      {
        content = elements[i].title;
      }

      content = content.replace(new RegExp('\'', 'g'), '\\\'');
      elements[i].onmouseover = new Function('in_event', "domTT_activate(this, in_event, 'content', '" + content + "')");
      elements[i].title = '';
    }
  }
}

// }}}
// {{{ domTT_update()

// Allow authors to update the contents of existing tips using the DOM
// Unfortunately, the tip must already exist, or else no work is done.
// TODO: make getting at content or caption cleaner
function domTT_update(handle, content, type)
{
  // type defaults to 'content', can also be 'caption'
  if (typeof(type) == 'undefined')
  {
    type = 'content';
  }

  var tip = domTT_tooltips.get(handle);
  if (!tip)
  {
    return;
  }

  var tipObj = tip.get('node');
  var updateNode;
  if (type == 'content')
  {
    // <div class="contents">...
    updateNode = tipObj.firstChild;
    if (updateNode.className != 'contents')
    {
      // <table><tbody><tr>...</tr><tr><td><div class="contents">...
      updateNode = updateNode.firstChild.firstChild.nextSibling.firstChild.firstChild;
    }
  }
  else
  {
    updateNode = tipObj.firstChild;
    if (updateNode.className == 'contents')
    {
      // missing caption
      return;
    }

    // <table><tbody><tr><td><div class="caption">...
    updateNode = updateNode.firstChild.firstChild.firstChild.firstChild;
  }

  // TODO: allow for a DOM node as content
  updateNode.innerHTML = content;
}

// }}}