/* =================================================================================================* (mt) Media Temple DropDown** Javascript library responsible for the semi-transparent multi-level dropdown menus on the * (mt) Media Temple website.** Copyright 2003, Aaron Boodman (aaron@youngpup.net)* =================================================================================================* "Can I use this?"* * Use of this library is governed by the Creative Commons Attribution-NonCommercial-ShareAlike 1.0* License. You can check it out at: http://creativecommons.org/licenses/by-nc-sa/1.0** Basically:* - You may copy, distribute, and eat this code as you wish. But you must give me credit for * writing it. You may not misrepresent yourself as the author of this code.* - You may not use this code in a commercial setting without prior consent from me.* - If you make changes to this code, you must make the changes available under a license like* this one.* =================================================================================================* "It's kinda hard to read, though"** The uncompressed, commented version of this script can be found at: * http://youngpup.net/code/mtDropDowns* ============================================================================================== */mtDropDown.spacerGif = "/_images/x.gif"; mtDropDown.dingbatOn = "/_images/nav/expand-1.gif"; mtDropDown.dingbatOff = "/_images/nav/expand-0.gif"; mtDropDown.dingbatSize = 14; mtDropDown.menuPadding = 1; mtDropDown.itemPadding = 4; mtDropDown.shadowSize = 2; mtDropDown.shadowOffset = 3; mtDropDown.shadowColor = "#888"; mtDropDown.shadowPng = "/_images/grey-40.png"; mtDropDown.backgroundColor = "white"; mtDropDown.backgroundPng = "/_images/white-90.png"; mtDropDown.hideDelay = 1000; mtDropDown.slideTime = 200; mtDropDown.reference = {topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};mtDropDown.direction = {down:1,right:2};mtDropDown.registry = [];mtDropDown._maxZ = 100;mtDropDown.isSupported = function() {if (typeof mtDropDown.isSupported.r == "boolean") return mtDropDown.isSupported.r;var ua = navigator.userAgent.toLowerCase();var an = navigator.appName;var r = false;if (ua.indexOf("gecko") > -1) r = true; else if (an == "Microsoft Internet Explorer") {if (document.getElementById) r = true; }mtDropDown.isSupported.r = r;return r;}mtDropDown.initialize = function() {for (var i = 0, menu = null; menu = this.registry[i]; i++) {menu.initialize();}}mtDropDown.renderAll = function() {var aMenuHtml = [];for (var i = 0, menu = null; menu = this.registry[i]; i++) {aMenuHtml[i] = menu.toString();}document.write(aMenuHtml.join(""));}function mtDropDown(oActuator, iDirection, iLeft, iTop, iReferencePoint, parentMenuSet) {this.addItem = addItem;this.addMenu = addMenu;this.toString = toString;this.initialize = initialize;this.isOpen = false;this.show = show;this.hide = hide;this.items = [];this.onactivate = new Function(); this.ondeactivate = new Function(); this.onmouseover = new Function(); this.onqueue = new Function(); this.index = mtDropDown.registry.length;mtDropDown.registry[this.index] = this;var id = "mtDropDown" + this.index;var contentHeight = null;var contentWidth = null;var childMenuSet = null;var animating = false;var childMenus = [];var slideAccel = -1;var elmCache = null;var ready = false;var _this = this;var a = null;var pos = iDirection == mtDropDown.direction.down ? "top" : "left";var dim = null;function addItem(sText, sUrl) {var item = new mtDropDownItem(sText, sUrl, this);item._index = this.items.length;this.items[item._index] = item;}function addMenu(oMenuItem) {if (!oMenuItem.parentMenu == this) throw new Error("Cannot add a menu here");if (childMenuSet == null) childMenuSet = new mtDropDownSet(mtDropDown.direction.right, -5, 2, mtDropDown.reference.topRight);var m = childMenuSet.addMenu(oMenuItem);childMenus[oMenuItem._index] = m;m.onmouseover = child_mouseover;m.ondeactivate = child_deactivate;m.onqueue = child_queue;return m;}function initialize() {initCache();initEvents();initSize();ready = true;}function show() {if (ready) {_this.isOpen = true;animating = true;setContainerPos();elmCache["clip"].style.visibility = "visible";elmCache["clip"].style.zIndex = mtDropDown._maxZ++;slideStart();_this.onactivate();}}function hide() {if (ready) {_this.isOpen = false;animating = true;for (var i = 0, item = null; item = elmCache.item[i]; i++) dehighlight(item);if (childMenuSet) childMenuSet.hide();slideStart();_this.ondeactivate();}}function setContainerPos() {var sub = oActuator.constructor == mtDropDownItem; var act = sub ? oActuator.parentMenu.elmCache["item"][oActuator._index] : oActuator; var el = act;var x = 0;var y = 0;var minX = 0;var maxX = (window.innerWidth ? window.innerWidth : document.body.clientWidth) - parseInt(elmCache["clip"].style.width);var minY = 0;var maxY = (window.innerHeight ? window.innerHeight : document.body.clientHeight) - parseInt(elmCache["clip"].style.height);while (sub ? el.parentNode.className.indexOf("mtDropdownMenu") == -1 : el.offsetParent) {x += el.offsetLeft;y += el.offsetTop;if (el.scrollLeft) x -= el.scrollLeft;if (el.scrollTop) y -= el.scrollTop;el = el.offsetParent;}if (oActuator.constructor == mtDropDownItem) {x += parseInt(el.parentNode.style.left);y += parseInt(el.parentNode.style.top);}switch (iReferencePoint) {case mtDropDown.reference.topLeft:break;case mtDropDown.reference.topRight:x += act.offsetWidth;break;case mtDropDown.reference.bottomLeft:y += act.offsetHeight;break;case mtDropDown.reference.bottomRight:x += act.offsetWidth;y += act.offsetHeight;break;}x += iLeft;y += iTop;x = Math.max(Math.min(x, maxX), minX);y = Math.max(Math.min(y, maxY), minY);elmCache["clip"].style.left = x + "px";elmCache["clip"].style.top = y + "px";}function slideStart() {var x0 = parseInt(elmCache["content"].style[pos]);var x1 = _this.isOpen ? 0 : -dim;if (a != null) a.stop();a = new Accelimation(x0, x1, mtDropDown.slideTime, slideAccel);a.onframe = slideFrame;a.onend = slideEnd;a.start();}function slideFrame(x) {elmCache["content"].style[pos] = x + "px";}function slideEnd() {if (!_this.isOpen) elmCache["clip"].style.visibility = "hidden";animating = false;}function initSize() {var ow = elmCache["items"].offsetWidth;var oh = elmCache["items"].offsetHeight;var ua = navigator.userAgent.toLowerCase();elmCache["clip"].style.width = ow + mtDropDown.shadowSize + 2 + "px";elmCache["clip"].style.height = oh + mtDropDown.shadowSize + 2 + "px";elmCache["content"].style.width = ow + mtDropDown.shadowSize + "px";elmCache["content"].style.height = oh + mtDropDown.shadowSize + "px";contentHeight = oh + mtDropDown.shadowSize;contentWidth = ow + mtDropDown.shadowSize;dim = iDirection == mtDropDown.direction.down ? contentHeight : contentWidth;elmCache["content"].style[pos] = -dim - mtDropDown.shadowSize + "px";elmCache["clip"].style.visibility = "hidden";if (ua.indexOf("mac") == -1 || ua.indexOf("gecko") > -1) {elmCache["background"].style.width = ow + "px";elmCache["background"].style.height = oh + "px";elmCache["background"].style.backgroundColor = mtDropDown.backgroundColor;elmCache["shadowRight"].style.left = ow + "px";elmCache["shadowRight"].style.height = oh - (mtDropDown.shadowOffset - mtDropDown.shadowSize) + "px";elmCache["shadowRight"].style.backgroundColor = mtDropDown.shadowColor;elmCache["shadowBottom"].style.top = oh + "px";elmCache["shadowBottom"].style.width = ow - mtDropDown.shadowOffset + "px";elmCache["shadowBottom"].style.backgroundColor = mtDropDown.shadowColor;}else {elmCache["background"].firstChild.src = mtDropDown.backgroundPng;elmCache["background"].firstChild.width = ow;elmCache["background"].firstChild.height = oh;elmCache["shadowRight"].firstChild.src = mtDropDown.shadowPng;elmCache["shadowRight"].style.left = ow + "px";elmCache["shadowRight"].firstChild.width = mtDropDown.shadowSize;elmCache["shadowRight"].firstChild.height = oh - (mtDropDown.shadowOffset - mtDropDown.shadowSize);elmCache["shadowBottom"].firstChild.src = mtDropDown.shadowPng;elmCache["shadowBottom"].style.top = oh + "px";elmCache["shadowBottom"].firstChild.height = mtDropDown.shadowSize;elmCache["shadowBottom"].firstChild.width = ow - mtDropDown.shadowOffset;}}function initCache() {var menu = document.getElementById(id);var all = menu.all ? menu.all : menu.getElementsByTagName("*"); elmCache = {};elmCache["clip"] = menu;elmCache["item"] = [];for (var i = 0, elm = null; elm = all[i]; i++) {switch (elm.className) {case "items":case "content":case "background":case "shadowRight":case "shadowBottom":elmCache[elm.className] = elm;break;case "item":elm._index = elmCache["item"].length;elmCache["item"][elm._index] = elm;break;}}_this.elmCache = elmCache;}function initEvents() {for (var i = 0, item = null; item = elmCache.item[i]; i++) {item.onmouseover = item_mouseover;item.onmouseout = item_mouseout;item.onclick = item_click;}if (typeof oActuator.tagName != "undefined") {oActuator.onmouseover = actuator_mouseover;oActuator.onmouseout = actuator_mouseout;}elmCache["content"].onmouseover = content_mouseover;elmCache["content"].onmouseout = content_mouseout;}function highlight(oRow) {oRow.className = "item hover";if (childMenus[oRow._index]) oRow.lastChild.firstChild.src = mtDropDown.dingbatOn;}function dehighlight(oRow) {oRow.className = "item";if (childMenus[oRow._index]) oRow.lastChild.firstChild.src = mtDropDown.dingbatOff;}function item_mouseover() {if (!animating) {highlight(this);if (childMenus[this._index]) childMenuSet.showMenu(childMenus[this._index]);else if (childMenuSet) childMenuSet.hide();}}function item_mouseout() {if (!animating) {if (childMenus[this._index])childMenuSet.hideMenu(childMenus[this._index]);else dehighlight(this);}}function item_click() {if (!animating) {if (_this.items[this._index].url) location.href = _this.items[this._index].url;}}function actuator_mouseover() {parentMenuSet.showMenu(_this);}function actuator_mouseout() {parentMenuSet.hideMenu(_this);}function content_mouseover() {if (!animating) {parentMenuSet.showMenu(_this);_this.onmouseover();}}function content_mouseout() {if (!animating) {parentMenuSet.hideMenu(_this);}}function child_mouseover() {if (!animating) {parentMenuSet.showMenu(_this);}}function child_deactivate() {for (var i = 0; i < childMenus.length; i++) {if (childMenus[i] == this) {dehighlight(elmCache["item"][i]);break;}}}function child_queue() {parentMenuSet.hideMenu(_this);}function toString() {var aHtml = [];var sClassName = "mtDropdownMenu" + (oActuator.constructor != mtDropDownItem ? " top" : "");for (var i = 0, item = null; item = this.items[i]; i++) {aHtml[i] = item.toString(childMenus[i]);}return '