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// {{{ global constants

/**
 * Global constants (DO NOT EDIT)
 */

// browsers
var domLib_userAgent = navigator.userAgent.toLowerCase();
var domLib_isOpera = domLib_userAgent.indexOf('opera 7') != -1 ? 1 : 0;
var domLib_isKonq = domLib_userAgent.indexOf('konq') != -1 ? 1 : 0;
var domLib_isIE = !domLib_isKonq && !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;
var domLib_isIE55up = domLib_isIE5up && !domLib_isIE50;
var domLib_isIE6up = domLib_isIE55up && !domLib_isIE55;
var domLib_isGecko = domLib_userAgent.indexOf('gecko') != -1 ? 1 : 0;

// abilities
var domLib_useLibrary = domLib_isOpera || domLib_isKonq || domLib_isIE5up || domLib_isGecko ? 1 : 0;
var domLib_canTimeout = !(domLib_isKonq || domLib_isIE50);
var domLib_canFade = domLib_isGecko || domLib_isIE55up;

// 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';
// :FIX: bug in Opera that it can't set maxWidth to 'none'
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_selectElements;

var domLib_timeoutStateId = 0;
var domLib_timeoutStates = new Hash();

// }}}
// {{{ Object.prototype.clone

Object.prototype.clone = function()
{
        var copy = {};
        for (var i in this)
        {
                var value = this[i];
                try
                {
                        if (value != null && typeof(value) == 'object' && value != window && !value.nodeType)
                        {
                                // for IE5 which doesn't inherit prototype
                                value.clone = Object.clone;
                                copy[i] = value.clone();
                        }
                        else
                        {
                                copy[i] = value;
                        }
                }
                catch(e)
                {
                        copy[i] = value;
                }
        }

        return copy;
}

// }}}
// {{{ class Hash()

function Hash()
{
        this.length = 0;
        this.elementData = [];
        for (var i = 0; i < arguments.length; i += 2)
        {
                if (typeof(arguments[i + 1]) != 'undefined')
                {
                        this.elementData[arguments[i]] = arguments[i + 1];
                        this.length++;
                }
        }

        this.get = function(in_key)
        {
                return this.elementData[in_key];
        }

        this.set = function(in_key, in_value)
        {
                if (typeof(in_value) != 'undefined')
                {
                        if (typeof(this.elementData[in_key]) == 'undefined')
                        {
                                this.length++;
                        }

                        return this.elementData[in_key] = in_value;
                }

                return false;
        }

        this.remove = function(in_key)
        {
                var tmp_value;
                if (typeof(this.elementData[in_key]) != 'undefined')
                {
                        this.length--;
                        tmp_value = this.elementData[in_key];
                        delete this.elementData[in_key];
                }

                return tmp_value;
        }

        this.size = function()
        {
                return this.length;
        }

        this.has = function(in_key)
        {
                return typeof(this.elementData[in_key]) != 'undefined';
        }
}

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

// :WARNING: hideList is being used as an object property and is not a string
function domLib_detectCollisions(in_object, in_recover)
{
        // no need to do anything for opera
        if (domLib_isOpera)
        {
                return;
        }

        if (typeof(domLib_selectElements) == 'undefined')
        {
                domLib_selectElements = document.getElementsByTagName('select');
        }

        // if we don't have a tip, then unhide selects
        if (in_recover)
        {
                for (var cnt = 0; cnt < domLib_selectElements.length; cnt++)
                {
                        var thisSelect = domLib_selectElements[cnt];

                        if (!thisSelect.hideList)
                        {
                                thisSelect.hideList = new Hash();
                        }

                        // if this is mozilla and it is a regular select or it is multiple and the
                        // size is not set, then we don't need to unhide
                        if (domLib_isGecko && (!thisSelect.multiple || thisSelect.size < 0))
                        {
                                continue;
                        }

                        thisSelect.hideList.remove(in_object.id);
                        if (!thisSelect.hideList.length)
                        {
                                domLib_selectElements[cnt].style.visibility = 'visible';
                        }
                }

                return;
        }

        // okay, we have a tip, so hunt and destroy
        var objectOffsets = domLib_getOffsets(in_object);

        for (var cnt = 0; cnt < domLib_selectElements.length; cnt++)
        {
                var thisSelect = domLib_selectElements[cnt];

                // if this is mozilla and not a multiple-select or the multiple select size
                // is not defined, then continue since mozilla does not have an issue
                if (domLib_isGecko && (!thisSelect.multiple || thisSelect.size < 0))
                {
                        continue;
                }

                // if the select is in the tip, then skip it
                // :WARNING: is this too costly?
                if (domLib_isDescendantOf(thisSelect, in_object))
                {
                        continue;
                }

                if (!thisSelect.hideList)
                {
                        thisSelect.hideList = new Hash();
                }

                var selectOffsets = domLib_getOffsets(thisSelect); 
                // for mozilla we only have to worry about the scrollbar itself
                if (domLib_isGecko)
                {
                        selectOffsets.set('left', selectOffsets.get('left') + thisSelect.offsetWidth - domLib_scrollbarWidth);
                        selectOffsets.set('leftCenter', selectOffsets.get('left') + domLib_scrollbarWidth/2);
                        selectOffsets.set('radius', Math.max(thisSelect.offsetHeight, domLib_scrollbarWidth/2));
                }

                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')))
                        {
                                thisSelect.hideList.remove(in_object.id);
                                if (!thisSelect.hideList.length)
                                {
                                        thisSelect.style.visibility = 'visible';
                                }
                        }
                        else
                        {
                                thisSelect.hideList.set(in_object.id, true);
                                thisSelect.style.visibility = 'hidden';
                        }
                }
        }
}

// }}}
// {{{ 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;

        while (in_object)
        {
                offsetLeft += in_object.offsetLeft;
                offsetTop += in_object.offsetTop;
                in_object = in_object.offsetParent;
        }

        return new Hash(
                'left',                 offsetLeft,
                'top',                  offsetTop,
                'right',                offsetLeft + originalWidth,
                'bottom',               offsetTop + originalHeight,
                'leftCenter',   offsetLeft + originalWidth/2,
                'topCenter',    offsetTop + originalHeight/2,
                'radius',               Math.max(originalWidth, originalHeight) 
        );
}

// }}}
// {{{ domLib_setTimeout()

function domLib_setTimeout(in_function, in_timeout, in_args)
{
        if (typeof(in_args) == 'undefined')
        {
                in_args = [];
        }

        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_canTimeout)
        {
                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_canTimeout)
        {
                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();
        if (domLib_isKonq)
        {
                eventPosition.set('x', in_eventObj.x);
                eventPosition.set('y', in_eventObj.y);
        }
        else if (domLib_isIE)
        {
                if (document.documentElement.clientHeight)
                {
                        eventPosition.set('x', in_eventObj.clientX + document.documentElement.scrollLeft);
                        eventPosition.set('y', in_eventObj.clientY + document.documentElement.scrollTop);
                }
                // :WARNING: consider case where document.body doesn't yet exist for IE
                else
                {
                        eventPosition.set('x', in_eventObj.clientX + document.body.scrollLeft);
                        eventPosition.set('y', in_eventObj.clientY + document.body.scrollTop);
                }
        }
        else
        {
                eventPosition.set('x', in_eventObj.pageX);
                eventPosition.set('y', in_eventObj.pageY);
        }

        return eventPosition;
}

// }}}
// {{{ makeTrue()

function makeTrue()
{
        return true;
}

// }}}
// {{{ makeFalse()

function makeFalse()
{
        return false;
}

// }}}