</style>
<script language="javascript">
/** $Id: domLib.js 1891 2005-05-25 05:01:19Z dallen $ */
// {{{ docs <-- this is a VIM (text editor) text fold
/**
* Title: DOM Library Core
* Version: 0.65
*
* Summary:
* A set of commonly used functions that make it easier to create javascript
* applications that rely on the DOM.
*
* Updated: 2005/05/17
*
* Maintainer: Dan Allen <[email protected]>
* Maintainer: Jason Rust <[email protected]>
*
* License: LGPL
*/
// }}}
// {{{ global constants (DO NOT EDIT)
/**
* Global constants (DO NOT EDIT)
*/
// -- Browser Detection --
var domLib_userAgent = navigator.userAgent.toLowerCase();
var domLib_isMac = navigator.appVersion.indexOf('Mac') != -1;
var domLib_isWin = domLib_userAgent.indexOf('windows') != -1;
var domLib_isOpera = domLib_userAgent.indexOf('opera') != -1;
var domLib_isOpera7up = domLib_userAgent.match(/opera.(7|8)/i);
var domLib_isSafari = domLib_userAgent.indexOf('safari') != -1;
var domLib_isKonq = domLib_userAgent.indexOf('konqueror') != -1;
// Both konqueror and safari use the khtml rendering engine
var domLib_isKHTML = (domLib_isKonq || domLib_isSafari || domLib_userAgent.indexOf('khtml') != -1);
var domLib_isIE = (!domLib_isKHTML && !domLib_isOpera && (domLib_userAgent.indexOf('msie 5') != -1 || domLib_userAgent.indexOf('msie 6') != -1));
var domLib_isIE5up = domLib_isIE;
var domLib_isIE50 = (domLib_isIE && domLib_userAgent.indexOf('msie 5.0') != -1);
var domLib_isIE55 = (domLib_isIE && domLib_userAgent.indexOf('msie 5.5') != -1);
var domLib_isIE5 = (domLib_isIE50 || domLib_isIE55);
// safari and konq may use string "khtml, like gecko", so check for destinctive /
var domLib_isGecko = domLib_userAgent.indexOf('gecko/') != -1;
var domLib_isMacIE = (domLib_isIE && domLib_isMac);
var domLib_isIE55up = domLib_isIE5up && !domLib_isIE50 && !domLib_isMacIE;
var domLib_isIE6up = domLib_isIE55up && !domLib_isIE55;
// -- Event Variables --
var domLib_eventTarget = domLib_isIE ? 'srcElement' : 'currentTarget';
var domLib_eventButton = domLib_isIE ? 'button' : 'which';
var domLib_eventTo = domLib_isIE ? 'toElement' : 'relatedTarget';
var domLib_stylePointer = domLib_isIE ? 'hand' : 'pointer';
// NOTE: a bug exists in Opera that prevents maxWidth from being set to 'none', so we make it huge
var domLib_styleNoMaxWidth = domLib_isOpera ? '10000px' : 'none';
var domLib_hidePosition = '-1000px';
var domLib_scrollbarWidth = 14;
var domLib_autoId = 1;
var domLib_zIndex = 100;
// -- Detection --
var domLib_collisionElements;
var domLib_collisionsCached = false;
var domLib_timeoutStateId = 0;
var domLib_timeoutStates = new Hash();
for (var tmp_key in this.elementData)
{ if (this.elementData[tmp_key] != in_hash.elementData[tmp_key])
{ return false;
}
}
return true;
}
// }}}
// {{{ domLib_isDescendantOf()
function domLib_isDescendantOf(in_object, in_ancestor)
{ if (in_object == in_ancestor)
{ return true;
}
while (in_object != document.documentElement)
{ try
{ if ((tmp_object = in_object.offsetParent) && tmp_object == in_ancestor)
{ return true;
} else if ((tmp_object = in_object.parentNode) == in_ancestor)
{ return true;
} else
{
in_object = tmp_object;
}
}
// in case we get some wierd error, just assume we haven't gone out yet catch(e)
{ return true;
}
}
return false;
}
// }}}
// {{{ domLib_detectCollisions()
/**
* For any given target element, determine if elements on the page
* are colliding with it that do not obey the rules of z-index.
*/ function domLib_detectCollisions(in_object, in_recover, in_useCache)
{
// the reason for the cache is that if the root menu is built before
// the page is done loading, then it might not find all the elements.
// so really the only time you don't use cache is when building the
// menu as part of the page load if (!domLib_collisionsCached)
{
var tags = [];
if (!domLib_canDrawOverFlash)
{
tags[tags.length] = 'object';
}
if (!domLib_canDrawOverSelect)
{
tags[tags.length] = 'select';
}
// if we don't have a tip, then unhide selects if (in_recover)
{ for (var cnt = 0; cnt < domLib_collisionElements.length; cnt++)
{
var thisElement = domLib_collisionElements[cnt];
if (!thisElement.hideList)
{
thisElement.hideList = new Hash();
}
thisElement.hideList.remove(in_object.id); if (!thisElement.hideList.length)
{
domLib_collisionElements[cnt].style.visibility = 'visible'; if (domLib_isKonq)
{
domLib_collisionElements[cnt].style.display = '';
}
}
}
return;
} else if (domLib_collisionElements.length == 0)
{ return;
}
// okay, we have a tip, so hunt and destroy
var objectOffsets = domLib_getOffsets(in_object);
for (var cnt = 0; cnt < domLib_collisionElements.length; cnt++)
{
var thisElement = domLib_collisionElements[cnt];
// if collision element is in active element, move on
// WARNING: is this too costly? if (domLib_isDescendantOf(thisElement, in_object))
{ continue;
}
// konqueror only has trouble with multirow selects if (domLib_isKonq &&
thisElement.tagName == 'SELECT' &&
(thisElement.size <= 1 && !thisElement.multiple))
{ continue;
}
if (!thisElement.hideList)
{
thisElement.hideList = new Hash();
}
var selectOffsets = domLib_getOffsets(thisElement);
var center2centerDistance = Math.sqrt(Math.pow(selectOffsets.get('leftCenter') - objectOffsets.get('leftCenter'), 2) + Math.pow(selectOffsets.get('topCenter') - objectOffsets.get('topCenter'), 2));
var radiusSum = selectOffsets.get('radius') + objectOffsets.get('radius');
// the encompassing circles are overlapping, get in for a closer look if (center2centerDistance < radiusSum)
{
// tip is left of select if ((objectOffsets.get('leftCenter') <= selectOffsets.get('leftCenter') && objectOffsets.get('right') < selectOffsets.get('left')) ||
// tip is right of select
(objectOffsets.get('leftCenter') > selectOffsets.get('leftCenter') && objectOffsets.get('left') > selectOffsets.get('right')) ||
// tip is above select
(objectOffsets.get('topCenter') <= selectOffsets.get('topCenter') && objectOffsets.get('bottom') < selectOffsets.get('top')) ||
// tip is below select
(objectOffsets.get('topCenter') > selectOffsets.get('topCenter') && objectOffsets.get('top') > selectOffsets.get('bottom')))
{
thisElement.hideList.remove(in_object.id); if (!thisElement.hideList.length)
{
thisElement.style.visibility = 'visible'; if (domLib_isKonq)
{
thisElement.style.display = '';
}
}
} else
{
thisElement.hideList.set(in_object.id, true);
thisElement.style.visibility = 'hidden'; if (domLib_isKonq)
{
thisElement.style.display = 'none';
}
}
}
}
}
// }}}
// {{{ domLib_getOffsets()
function domLib_getOffsets(in_object)
{
var originalObject = in_object;
var originalWidth = in_object.offsetWidth;
var originalHeight = in_object.offsetHeight;
var offsetLeft = 0;
var offsetTop = 0;
function domLib_setTimeout(in_function, in_timeout, in_args)
{ if (typeof(in_args) == 'undefined')
{
in_args = [];
}
if (in_timeout == -1)
{
// timeout event is disabled return;
} else if (in_timeout == 0)
{
in_function(in_args); return 0;
}
// must make a copy of the arguments so that we release the reference if (typeof(in_args.clone) != 'function')
{
in_args.clone = Object.clone;
}
var args = in_args.clone();
if (!domLib_hasBrokenTimeout)
{ return setTimeout(function() { in_function(args); }, in_timeout);
} else
{
var id = domLib_timeoutStateId++;
var data = new Hash();
data.set('function', in_function);
data.set('args', args);
domLib_timeoutStates.set(id, data);
data.set('timeoutId', setTimeout('domLib_timeoutStates.get(' + id + ').get(\'function\')(domLib_timeoutStates.get(' + id + ').get(\'args\')); domLib_timeoutStates.remove(' + id + ');', in_timeout)); return id;
}
}
// }}}
// {{{ domLib_clearTimeout()
function domLib_clearTimeout(in_id)
{ if (!domLib_hasBrokenTimeout)
{
clearTimeout(in_id);
} else
{ if (domLib_timeoutStates.has(in_id))
{
clearTimeout(domLib_timeoutStates.get(in_id).get('timeoutId'))
domLib_timeoutStates.remove(in_id);
}
}
}
// }}}
// {{{ domLib_getEventPosition()
function domLib_getEventPosition(in_eventObj)
{
var eventPosition = new Hash('x', 0, 'y', 0, 'scrollX', 0, 'scrollY', 0);
// IE varies depending on standard compliance mode if (domLib_isIE)
{
var doc = (domLib_standardsMode ? document.documentElement : document.body);
// NOTE: events may fire before the body has been loaded if (doc)
{
eventPosition.set('x', in_eventObj.clientX + doc.scrollLeft);
eventPosition.set('y', in_eventObj.clientY + doc.scrollTop);
eventPosition.set('scrollX', doc.scrollLeft);
eventPosition.set('scrollY', doc.scrollTop);
}
} else
{
eventPosition.set('x', in_eventObj.pageX);
eventPosition.set('y', in_eventObj.pageY);
eventPosition.set('scrollX', in_eventObj.pageX - in_eventObj.clientX);
eventPosition.set('scrollY', in_eventObj.pageY - in_eventObj.clientY);
}
return eventPosition;
}
// }}}
// {{{ domLib_cancelBubble()
function domLib_cancelBubble(in_event)
{
var eventObj = in_event ? in_event : window.event;
eventObj.cancelBubble = true;
}
// }}}
// {{{ domLib_getIFrameReference()
function domLib_getIFrameReference(in_frame)
{ if (domLib_isGecko || domLib_isIE)
{ return in_frame.frameElement;
} else
{
// we could either do it this way or require an id on the frame
// equivalent to the name
var name = in_frame.name; if (!name || !in_frame.parent)
{ return;
}
var candidates = in_frame.parent.document.getElementsByTagName('iframe'); for (var i = 0; i < candidates.length; i++)
{ if (candidates[i].name == name)
{ return candidates[i];
}
}
}
}
// }}}
// {{{ domLib_getElementsByClass()
function domLib_getElementsByClass(in_class)
{
var elements = domLib_isIE5 ? document.all : document.getElementsByTagName('*');
var matches = [];
var cnt = 0; for (var i = 0; i < elements.length; i++)
{ if ((" " + elements[i].className + " ").indexOf(" " + in_class + " ") != -1)<br/
