dommenu.js

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	}
	// we are highlighting the top level, but menu is not yet 'active'
	else {
		if (currentTarget != relatedTarget) {
			domLib_clearTimeout(domMenu_timeouts['open'].get(currentTarget.id));
			domMenu_toggleHighlight(currentTarget, false);
		}
	}
}	

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

function domMenu_getElement(in_object, in_basename)
{
	while (in_object) {
		try {
			if (in_object.id && in_object.id.search(new RegExp('^' + in_basename + '(\\[[0-9]\\])*\\[[1-9]\\]$')) == 0) {
				return in_object;
			}
			else {
				in_object = in_object.parentNode;
			}
		}
		catch(e) {
			return false;
		}
	}
	
	return false;
}

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

function domMenu_correctEdgeBleed(in_width, in_height, in_x, in_y, in_padding, in_axis)
{
	// Gecko and IE swaps values of clientHeight, clientWidth properties when
	// in standards compliance mode from documentElement to document.body
	var doc = ((domLib_standardsMode && (domLib_isIE || domLib_isGecko)) ? document.documentElement : document.body);

	var pageHeight = domLib_isKHTML ? window.innerHeight : doc.clientHeight;
	var pageYOffset = domLib_isIE ? doc.scrollTop : window.pageYOffset;
	var pageXOffset = domLib_isIE ? doc.scrollLeft : window.pageXOffset;
	
	if (in_axis == 'horizontal') {
		var bleedRight = (in_x - pageXOffset) + in_width - (doc.clientWidth - in_padding);
		var bleedLeft = (in_x - pageXOffset) - in_padding;
		// we are bleeding off the right, move menu to stay on page
		if (bleedRight > 0) {
			in_x -= bleedRight;
		}

		// we are bleeding to the left, move menu over to stay on page
		// we don't want an 'else if' here, because if it doesn't fit we will bleed off the right
		if (bleedLeft < 0) {
			in_x += bleedLeft;
		}
		//Only in mvnforum case:
		//need update in_y again (Y_axis_old,in_y_old)=(0,402) -> (Y_axis_new,in_y_new)=(55,347) : pageYOffset = 55 
		in_y += pageYOffset;
	}
	else {
		var bleedTop = (in_y - pageYOffset) - in_padding;
		var bleedBottom = (in_y - pageYOffset) + in_height - (pageHeight - in_padding);
		// if we are bleeding off the bottom, move menu to stay on page
		if (bleedBottom > 0) {
			in_y -= bleedBottom;
		}

		// if we are bleeding off the top, move menu down
		// we don't want an 'else if' here, because if we just can't fit it, bleed off the bottom
		if (bleedTop < 0) {
			in_y += bleedTop;
		}
	}
	
	return [in_x, in_y];
}

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

function domMenu_toggleSubMenu(in_parentElement, in_style)
{
	var subMenu = in_parentElement.data.get('subMenu');
	if (subMenu && subMenu.style.visibility != in_style) {
		var settings = domMenu_settings.get(in_parentElement.data.get('basename'));
		var isFirstLevelSub = in_parentElement.data.get('level') == 1;
		var targetOtherDoc = isFirstLevelSub && settings.get('subMenuTargetFrame');
		var prefix = isFirstLevelSub ? 'menu' : 'subMenu';
		var className = settings.get(prefix + 'ElementClass');
		// :BUG: this is a problem if submenus click to open, then it won't
		// have the right class when you click to close
		if (in_style == 'visible') {
			className += ' ' + settings.get(prefix + 'Element' + (in_style == 'visible' ? 'Active' : 'Hover') + 'Class');
		}

		in_parentElement.firstChild.className = className;
		
		// position our submenu
		if (in_style == 'visible') {
			var tmp_offsets = domLib_getOffsets(in_parentElement);
			if (isFirstLevelSub) {
				tmp_offsets.set('top', tmp_offsets.get('top') + settings.get('verticalSubMenuOffsetY'));
				tmp_offsets.set('bottom', tmp_offsets.get('bottom') + settings.get('verticalSubMenuOffsetY'));
				tmp_offsets.set('left', tmp_offsets.get('left') + settings.get('verticalSubMenuOffsetX'));
				tmp_offsets.set('right', tmp_offsets.get('right') + settings.get('verticalSubMenuOffsetX'));
			}

			// reposition if there was a change in the parent position/size
			if (!in_parentElement.data.get('offsets').compare(tmp_offsets)) {
				in_parentElement.data.set('offsets', tmp_offsets);

				var xCoor, yCoor;
				if (isFirstLevelSub && settings.get('axis') == 'horizontal') {
					xCoor = tmp_offsets.get('left');
					// expand north
					if (settings.get('verticalExpand') == 'north') {
						if (targetOtherDoc) {
							yCoor = subMenu.offsetHeight;
						}
						else {
							yCoor = tmp_offsets.get('top') - subMenu.offsetHeight - settings.get('verticalSubMenuOffsetY');
						}
					}
					// expand south
					else {
						if (targetOtherDoc) {
							yCoor = settings.get('targetDocumentYOrigin');
						}
						else {
							yCoor = tmp_offsets.get('bottom');
						}
					}
				}
				else {
					yCoor = tmp_offsets.get('top') + settings.get('horizontalSubMenuOffsetY');
					// expand east
					if (settings.get('horizontalExpand') == 'east') {
						if (targetOtherDoc) {
							xCoor = settings.get('targetDocumentXOrigin');
						}
						else {
							xCoor = tmp_offsets.get('right') + settings.get('horizontalSubMenuOffsetX');
						}
					}
					// expand west
					else {
						xCoor = tmp_offsets.get('left') - subMenu.offsetWidth - settings.get('horizontalSubMenuOffsetX');
					}

					if (!targetOtherDoc && (domLib_isOpera || domLib_isSafari)) {
						var marginLeft = parseInt(domLib_getComputedStyle(document.body, 'margin-left'));
						xCoor -= marginLeft;
						var marginTop = parseInt(domLib_getComputedStyle(document.body, 'margin-top'));
						yCoor -= marginTop;
					}
				}

				var minWidth = settings.get('subMenuMinWidth');
				var renderedWidth = subMenu.offsetWidth;
				if (minWidth == 'inherit') {
					minWidth = in_parentElement.offsetWidth + settings.get('subMenuWidthCorrection');
				}
				else if (minWidth == 'auto') {
					minWidth = renderedWidth;
				}

				if (domLib_isKonq) {
					// change with width of the first cell
					subMenu.firstChild.firstChild.firstChild.firstChild.style.width = Math.max(minWidth, renderedWidth) + 'px';
				}
				else {
					// change the width of the table
					subMenu.firstChild.style.width = Math.max(minWidth, renderedWidth) + 'px';
				}
				
				var coordinates = domMenu_correctEdgeBleed(subMenu.offsetWidth, subMenu.offsetHeight, xCoor, yCoor, settings.get('screenPadding'), settings.get('axis'));
				subMenu.style.left = coordinates[0] + 'px';
				subMenu.style.top = coordinates[1] + 'px';

				// ** if we inherit, it is necessary to check the parent element width again **
				if (settings.get('axis') == 'horizontal' && settings.get('subMenuMinWidth') == 'inherit') {
					subMenu.firstChild.style.width = Math.max(in_parentElement.offsetWidth + settings.get('subMenuWidthCorrection'), renderedWidth) + 'px';
				}
			}
		}

		// force konqueror to change the styles
		if (domLib_isKonq) {
			in_parentElement.firstChild.style.display = 'none';
			in_parentElement.firstChild.style.display = '';
		}

		subMenu.style.visibility = in_style;
		if (domLib_detectObstructionsEnabled) {
			domLib_detectObstructions(subMenu, (in_style == 'hidden'), true);
		}
	}
}

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

function domMenu_toggleHighlight(in_element, in_status)
{
	// if this is a heading, don't change the style
	if (!in_element.data.get('numChildren') && !in_element.data.get('uri')) {
		return;
	}

	var settings = domMenu_settings.get(in_element.data.get('basename'));
	var prefix = in_element.data.get('level') == 1 ? 'menu' : 'subMenu';
	var className = settings.get(prefix + 'ElementClass');
	var highlightElement = in_element.firstChild;

	var pseudoClass;
	if (in_status) {
		if (in_element.data.has('subMenu') && in_element.data.get('subMenu').style.visibility == 'visible') {
			pseudoClass = 'Active';
		}
		else if (in_element.data.get('numChildren') || in_element.data.get('uri')) {
			pseudoClass = 'Hover';
		}
	}

	if (pseudoClass) {
		className += ' ' + settings.get(prefix + 'Element' + pseudoClass + 'Class');
		// if we are changing to hover, change the alt contents (only change if needs it)
		if (highlightElement.childNodes.length == 2) {
			//alert(highlightElement.lastChild);
		}
		if (highlightElement.childNodes.length == 2 && highlightElement.lastChild.style.display == 'none') {
			highlightElement.firstChild.style.display = 'none';
			highlightElement.lastChild.style.display = '';
		}
	}
	else {
		// if we are changing to non-hover, change the alt contents (only change if needs it)
		if (highlightElement.childNodes.length == 2 && highlightElement.firstChild.style.display == 'none') {
			highlightElement.lastChild.style.display = 'none';
			highlightElement.firstChild.style.display = '';
		}
	}

	highlightElement.className = className;

	// force konqueror to change the styles
	if (domLib_isKonq) {
		highlightElement.style.display = 'none';
		highlightElement.style.display = '';
	}
}

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

function domMenu_resolveLink(in_this, in_event)
{
	var eventObj = domLib_isIE ? event : in_event;
	var currentTarget = domLib_isIE ? in_this : eventObj.currentTarget;
	var basename = currentTarget.data.get('basename');

	// close the menu system immediately when we resolve the uri
	domMenu_changeActivePath(false, domMenu_activeElement.get(basename), 0);

	var uri = currentTarget.data.get('uri');
	if (uri) {
		window.status = 'Resolving Link...';
		// if a baseUri is specified and the link begins with '/', prepend baseUri
		if (uri.charAt(0) == '/' && domMenu_settings.get(basename).get('baseUri').length > 0) {
			uri = domMenu_settings.get(basename).get('baseUri') + uri;
		}

		if (uri.indexOf('javascript: ') == 0) {
			eval(uri.substring(12));
		}
		// open in current window
		else if (!currentTarget.data.get('target') || currentTarget.data.get('target') == '_self') {
			window.location = uri;
		}
		// open in new window
		else {
			window.open(uri, currentTarget.data.get('target'));
		}
	}
}

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

// We try and get rid of all circular references by avoiding the use of inner functions
// However, some are still left, so we run this function for IE
// @see http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=bcslfd%24ahl%241%248300dec7%40news.demon.co.uk
function domMenu_unloadEventCache()
{
	var clearElementProps = ['data', 'onmouseover', 'onmouseout', 'onmousedown', 
		'onmouseup', 'ondblclick', 'onclick', 'onselectstart', 'oncontextmenu'];
	var el;
	for (var d = document.all.length; d--;) {
		el = document.all[d];
		for (var c = clearElementProps.length; c--;) {
			el[clearElementProps[c]] = null;
		}
	}
}

// }}}
// {{{ event handling methods

// Functions which are attached to events instead of using inner functions to
// avoid memory leaks.
function domMenu_openMenuOnmouseoverHandler(in_event) {
	domMenu_openEvent(this, in_event, 'openMouseoverMenuDelay');
}

function domMenu_openMenuOnmousedownHandler(in_event) {
	domMenu_openEvent(this, in_event, 'openMousedownMenuDelay');
}

function domMenu_openSubMenuOnmouseoverHandler(in_event) {
	domMenu_openEvent(this, in_event, 'openMouseoverSubMenuDelay');
}

function domMenu_openSubMenuOnclickHandler(in_event) {
	domMenu_openEvent(this, in_event, 'openClickSubMenuDelay');
}

function domMenu_resolveLinkHandler(in_event) {
	domMenu_resolveLink(this, in_event);
}

function domMenu_closeMenuHandler(in_event) {
	domMenu_closeEvent(this, in_event);
}

// }}}
// {{{ callback methods

function domMenu_closeMenuCallback(argv) 
{
	domMenu_toggleHighlight(argv[0], false); 
	domMenu_toggleSubMenu(argv[0], 'hidden');
	// if this is the top level, then the menu is being deactivated
	if (argv[0].data.get('level') == 1) {
		domMenu_activeElement.set(argv[1], false);
	}
}

function domMenu_openMenuCallback(argv)
{
	if (!domMenu_activeElement.get(argv[1])) { 
		domMenu_activeElement.set(argv[1], argv[0]); 
	} 

	domMenu_activateSubMenu(argv[0]);
}

// }}}