Math/modules/MathJax/jax/output/NativeMML/jax.js

669 lines
25 KiB
JavaScript

/*************************************************************
*
* MathJax/jax/output/NativeMML/jax.js
*
* Implements the NativeMML OutputJax that displays mathematics
* using a browser's native MathML capabilities (if any).
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2010-2012 Design Science, Inc.
*
* 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.
*/
(function (nMML,HUB,AJAX,HTML) {
var MML, isMSIE = HUB.Browser.isMSIE;
var EVENT, TOUCH, HOVER, ZOOM; // filled in later
HUB.Register.StartupHook("MathZoom Ready",function () {ZOOM = MathJax.Extension.MathZoom});
nMML.Augment({
//
// User can configure styles
//
config: {
styles: {
".MathJax_mmlExBox": {
display:"block", overflow:"hidden",
height:"1px", width:"60ex",
padding:0, border: 0, margin: 0
}
}
},
settings: HUB.config.menuSettings,
Config: function () {
this.SUPER(arguments).Config.call(this);
if (this.settings.scale) {this.config.scale = this.settings.scale}
//
// Insert styling to take account of displayAlign and displayIndent
//
if (HUB.config.displayAlign !== "center") {
var align = HUB.config.displayAlign, indent = HUB.config.displayIndent;
var def = {"text-align": align+"!important"}; def["margin-"+align] = indent+"!important";
MathJax.Hub.Insert(this.config.styles,{
"div.MathJax_MathML": def,
"div.MathJax_MathML math": {"text-align": align},
"div.MathJax_MathContainer > span": {"text-align": align+"!important"}
});
}
if (!this.require) {this.require = []}
this.require.push(MathJax.OutputJax.extensionDir+"/MathEvents.js");
},
Startup: function () {
// Set up event handling
EVENT = MathJax.Extension.MathEvents.Event;
TOUCH = MathJax.Extension.MathEvents.Touch;
HOVER = MathJax.Extension.MathEvents.Hover;
this.ContextMenu = EVENT.ContextMenu;
this.Mousedown = EVENT.AltContextMenu;
this.Mouseover = HOVER.Mouseover;
this.Mouseout = HOVER.Mouseout;
this.Mousemove = HOVER.Mousemove;
if (!isMSIE) {
// Used in preTranslate to get scaling factors
this.EmExSpan = HTML.Element("span",
{style:{position:"absolute","font-size-adjust":"none"}},
[
["div",{className:"MathJax_mmlExBox"}],
["span",{className:"MathJax_MathML"}]
]
);
MML.math(MML.mspace().With({width:"60ex"})).toNativeMML(this.EmExSpan.lastChild);
}
// Set up styles
return AJAX.Styles(this.config.styles);
},
//
// Set up MathPlayer for IE on the first time through.
//
InitializeMML: function () {
this.initialized = true;
if (isMSIE) {
try {
//
// Insert data needed to use MathPlayer for MathML output
//
if (!HUB.Browser.hasMathPlayer) {
var mathplayer = document.createElement("object");
mathplayer.id = "mathplayer"; mathplayer.classid = "clsid:32F66A20-7614-11D4-BD11-00104BD3F987";
document.getElementsByTagName("head")[0].appendChild(mathplayer);
document.namespaces.add("m","http://www.w3.org/1998/Math/MathML");
HUB.Browser.hasMathPlayer = true;
}
if (!HUB.Browser.mpImported) {
document.namespaces.m.doImport("#mathplayer");
HUB.Browser.mpImported = true;
}
} catch (err) {
//
// If that fails, give an alert about security settings
//
alert("MathJax was not able to set up MathPlayer.\n\n"+
"If MathPlayer is not installed, you need to install it first.\n"+
"Otherwise, your security settings may be preventing ActiveX \n"+
"controls from running. Use the Internet Options item under\n"+
"the Tools menu and select the Security tab, then press the\n"+
"Custom Level button. Check that the settings for\n"+
"'Run ActiveX Controls', and 'Binary and script behaviors'\n"+
"are enabled.\n\n"+
"Currently you will see error messages rather than\n"+
"typeset mathematics.");
}
} else {
//
// Get the default sizes (need styles in place to do this)
//
document.body.appendChild(this.EmExSpan);
this.defaultEx = this.EmExSpan.firstChild.offsetWidth/60;
this.defaultMEx = this.EmExSpan.lastChild.offsetWidth/60;
document.body.removeChild(this.EmExSpan);
}
},
preTranslate: function (state) {
var scripts = state.jax[this.id], i, m = scripts.length,
script, prev, span, test, math, jax, ex, mex, scale;
for (i = 0; i < m; i++) {
script = scripts[i]; if (!script.parentNode) continue;
if (!this.initialized) {this.InitializeMML()}
//
// Remove any existing output
//
prev = script.previousSibling;
if (prev && prev.className === "MathJax_MathML") {prev.parentNode.removeChild(prev)}
//
// Add the MathJax span
//
jax = script.MathJax.elementJax; math = jax.root; jax.NativeMML = {};
var type = (math.Get("display") === "block" ? "div" : "span");
span = HTML.Element(type,{
className: "MathJax_MathML", id:jax.inputID+"-Frame"
},[["span",{
className:"MathJax_MathContainer", isMathJax: true, jaxID:this.id,
style:{position:"relative", display:"inline-block", "white-space":"nowrap"}
}, [["span",{isMathJax:true, style:{display:"inline-block"}}]] // for Firefox hover and zoom
]]);
script.parentNode.insertBefore(span,script);
//
// Add the test span for determining scales
//
if (!isMSIE) {script.parentNode.insertBefore(this.EmExSpan.cloneNode(true),script)}
}
//
// Determine the scaling factors for each script
// (this only requires one reflow rather than a reflow for each equation)
//
for (i = 0; i < m; i++) {
script = scripts[i]; if (!script.parentNode) continue;
jax = script.MathJax.elementJax;
if (!isMSIE) {
test = script.previousSibling; span = test.previousSibling;
ex = test.firstChild.offsetWidth/60;
mex = test.lastChild.offsetWidth/60;
if (ex === 0 || ex === "NaN") {ex = this.defaultEx; mex = this.defaultMEx}
scale = (mex > 1 ? ex/mex : 1) * this.config.scale;
scale = Math.floor(Math.max(this.config.minScaleAdjust/100,scale));
} else {scale = 100}
jax.NativeMML.fontSize = scale+"%";
}
//
// Remove the test spans used for determining scales
//
if (!isMSIE) {
for (i = 0; i < m; i++) {
script = scripts[i]; if (!script.parentNode) continue;
test = scripts[i].previousSibling;
test.parentNode.removeChild(test);
}
}
},
//
// Add a SPAN to use as a container, and render the math into it
//
Translate: function (script) {
if (!script.parentNode) return;
//
// Get the jax and the container and set the size
//
var jax = script.MathJax.elementJax, math = jax.root;
var span = document.getElementById(jax.inputID+"-Frame"),
container = span.firstChild, mspan = container.firstChild;
span.style.fontSize = jax.NativeMML.fontSize;
//
// Convert to MathML (if restarted, remove any partial math)
//
try {math.toNativeMML(mspan)} catch (err) {
if (err.restart) {while (mspan.firstChild) {mspan.removeChild(mspan.firstChild)}}
throw err;
}
//
// Add event handlers
//
if (isMSIE) {
if (container.addEventListener) {
for (var id in this.MSIE9events) {if (this.MSIE9events.hasOwnProperty(id)) {
container.addEventListener(id,this.MSIE9event,true);
}}
} else {
var config = (this.config.showMathMenuMSIE != null ? this : HUB).config;
if (config.showMathMenuMSIE && !this.settings.mpContext && !this.settings.mpMouse)
{this.MSIEoverlay(container)} else
{container.style.position = ""; mspan.firstChild.onmousedown = this.MSIEaltMenu}
}
} else {
container.oncontextmenu = EVENT.Menu;
container.onmouseover = EVENT.Mouseover;
container.onmouseout = EVENT.Mouseout;
container.onmousedown = EVENT.Mousedown;
container.onclick = EVENT.Click;
container.ondblclick = EVENT.DblClick;
}
},
postTranslate: function (state) {
if (this.forceReflow) {
// Firefox messes up some mtable's when they are dynamically created
// but gets them right on a reflow, so force reflow by toggling a stylesheet
var sheet = (document.styleSheets||[])[0]||{};
sheet.disabled = true; sheet.disabled = false;
}
},
//
// Remove MathML preceeding the script
//
Remove: function (jax) {
var span = jax.SourceElement(); if (!span) return;
span = span.previousSibling; if (!span) return;
if (span.className.match(/MathJax_MathML/)) {span.parentNode.removeChild(span)}
},
//
// The namespace to use for MML
//
MMLnamespace: "http://www.w3.org/1998/Math/MathML",
//
// For MSIE, we must overlay the MathPlayer object to trap the events
// (since they can't be cancelled when the events are on the <math> tag
// itself). The events we DON'T want are transferred to the math element,
// and the others are handled directly.
//
MSIEoverlay: function (span) {
var math = span.firstChild;
if (math.nodeName.toLowerCase() === "span") {math = math.firstChild}
var bbox = this.getHoverBBox(null,math,{});
HTML.addElement(span,"span",{
style:{display:"inline-block", width:0, height:0, position:"relative"}
},[["span",{isMathJax: true, className: "MathJax_MathPlayer_Overlay",
style:{
display:"inline-block", position:"absolute",
left:HOVER.Px(-bbox.w), top:HOVER.Px(-bbox.h-(bbox.y||0)-1),
width:HOVER.Px(bbox.w), height:HOVER.Px(bbox.h+bbox.d), cursor:"pointer",
"background-color":"white", filter:"alpha(opacity=0)"
}
}]]);
HUB.Insert(span,{
msieMath: math,
onmousedown: this.MSIEevent, oncontextmenu: this.MSIEevent, onclick: this.MSIEevent,
onmouseup: this.MSIEevent, onmousemove: this.MSIEevent, ondblclick: this.MSIEevent,
onmouseover: this.MSIEevent, onmouseout: this.MSIEevent
});
},
MSIEevents: {
mousedown:"Mousedown", contextmenu:"ContextMenu", click:"Click",
mouseup:"Mouseup", mousemove:"Mousemove", dblclick: "DblClick",
mouseover:"Mouseover", mouseout:"Mouseout"
},
MSIEevent: function () {
var event = window.event;
var type = nMML.MSIEevents[event.type];
if (nMML[type] && nMML[type](event,this) === false) {return false}
if (ZOOM && ZOOM.HandleEvent(event,type,this) === false) {return false}
if (event.srcElement.className === "MathJax_MathPlayer_Overlay" && this.msieMath.fireEvent) {
// for now, ignore all other events. This will disable MathPlayer's zoom
// feature, but also its <maction> support.
if (type === "ContextMenu" || type === "Mouseover" || type === "Mouseout")
{this.msieMath.fireEvent("on"+event.type,event)}
}
return EVENT.False(event);
},
MSIEaltMenu: function () {
var container = this.parentNode.parentNode;
while (!container.jaxID) {container = container.parentNode}
EVENT.AltContextMenu(window.event,container);
},
MSIE9events: {
contextmenu:"Menu", click:"Click", dblclick: "DblClick",
mouseup:"False", mouseover:"Mouseover", mouseout:"Mouseout"
},
MSIE9event: function (event) {
if (event.type === "contextmenu" && nMML.settings.mpContext) {return true}
if (event.type === "mouseup" && nMML.settings.mpMouse) {return true}
if (event.type === "click" && nMML.settings.mpContext)
{return EVENT.AltContextMenu(event,this)}
var type = nMML.MSIE9events[event.type];
return EVENT[type].call(this,event);
},
getJaxFromMath: function (math) {return HUB.getJaxFor(math.parentNode.nextSibling)},
getHoverSpan: function (jax,math) {return math.firstChild},
getHoverBBox: function (jax,span,math) {return EVENT.getBBox(span.parentNode)},
Zoom: function (jax,span,math,Mw,Mh) {
jax.root.toNativeMML(span);
if (this.msieIE8HeightBug) {span.style.position = "absolute"}
var mW = math.offsetWidth || math.scrollWidth,
mH = math.offsetHeight || math.scrollHeight;
var zW = span.offsetWidth, zH = span.offsetHeight;
if (this.msieIE8HeightBug) {span.style.position = ""}
return {Y:-EVENT.getBBox(span.parentNode).h, mW:mW, mH:mH, zW:zW, zH:zH}
},
NAMEDSPACE: {
negativeveryverythinmathspace: "-.0556em",
negativeverythinmathspace: "-.1111em",
negativethinmathspace: "-.1667em",
negativemediummathspace: "-.2222em",
negativethickmathspace: "-.2778em",
negativeverythickmathspace: "-.3333em",
negativeveryverythickmathspace: "-.3889em"
}
});
HUB.Register.StartupHook("mml Jax Ready",function () {
MML = MathJax.ElementJax.mml;
MML.mbase.Augment({
//
// Add a MathML tag of the correct type, and set its attributes
// then populate it with its children and append it to the parent
//
toNativeMML: function (parent) {
var tag = this.NativeMMLelement(this.type);
this.NativeMMLattributes(tag);
for (var i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
parent.appendChild(tag);
},
//
// Look for attributes that are different from the defaults
// and set those in the tag's attribute list
//
NativeMMLattributes: function (tag) {
var defaults = this.defaults;
var copy = (this.attrNames||MML.copyAttributeNames), skip = MML.skipAttributes;
if (!this.attrNames) {
if (this.type === "mstyle") {defaults = MML.math.prototype.defaults}
for (var id in defaults) {if (!skip[id] && defaults.hasOwnProperty(id)) {
if (this[id] != null) {tag.setAttribute(id,this.NativeMMLattribute(this[id]))}
}}
}
for (var i = 0, m = copy.length; i < m; i++) {
var value = (this.attr||{})[copy[i]]; if (value == null) {value = this[copy[i]]}
if (value != null) {tag.setAttribute(copy[i],this.NativeMMLattribute(value))}
}
this.NativeMMLclass(tag);
},
NativeMMLclass: function (tag) {
var CLASS = []; if (this["class"]) {CLASS.push(this["class"])}
if (this.isa(MML.TeXAtom)) {
var TEXCLASS = ["ORD","OP","BIN","REL","OPEN","CLOSE","PUNCT","INNER","VCENTER"][this.texClass];
if (TEXCLASS) {CLASS.push("MJX-TeXAtom-"+TEXCLASS)}
}
if (this.mathvariant && this.NativeMMLvariants[this.mathvariant])
{CLASS.push("MJX"+this.mathvariant)}
if (this.arrow) {CLASS.push("MJX-arrow")}
if (this.variantForm) {CLASS.push("MJX-variant")}
if (CLASS.length) {tag.setAttribute("class",CLASS.join(" "))}
},
NativeMMLattribute: function (value) {
value = String(value);
if (nMML.NAMEDSPACE[value]) {value = nMML.NAMEDSPACE[value]} // MP doesn't do negative spaces
else if (value.match(/^\s*(([-+])?(\d+(\.\d*)?|\.\d+))\s*mu\s*$/))
{value = ((1/18)*RegExp.$1).toFixed(3).replace(/\.?0+$/,"")+"em"} // FIXME: should take scriptlevel into account
else if (this.NativeMMLvariants[value]) {value = this.NativeMMLvariants[value]}
return value;
},
NativeMMLvariants: {
"-tex-caligraphic": MML.VARIANT.SCRIPT,
"-tex-caligraphic-bold": MML.VARIANT.BOLDSCRIPT,
"-tex-oldstyle": MML.VARIANT.NORMAL,
"-tex-oldstyle-bold": MML.VARIANT.BOLD,
"-tex-mathit": MML.VARIANT.ITALIC
},
//
// Create a MathML element
//
NativeMMLelement: function (type) {
var math = (isMSIE ? document.createElement("m:"+type) :
document.createElementNS(nMML.MMLnamespace,type));
math.isMathJax = true;
return math;
}
});
MML.mrow.Augment({
//
// Make inferred rows not include an mrow tag
//
toNativeMML: function (parent) {
if (this.inferred && this.parent.inferRow) {
for (var i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(parent)}
else {parent.appendChild(this.NativeMMLelement("mrow"))}
}
} else {
this.SUPER(arguments).toNativeMML.call(this,parent);
}
}
});
MML.msubsup.Augment({
//
// Use proper version of msub, msup, or msubsup, depending on
// which items are present
//
toNativeMML: function (parent) {
var type = this.type;
if (this.data[this.sup] == null) {type = "msub"}
if (this.data[this.sub] == null) {type = "msup"}
var tag = this.NativeMMLelement(type);
this.NativeMMLattributes(tag);
delete this.data[0].inferred;
for (var i = 0, m = this.data.length; i < m; i++)
{if (this.data[i]) {this.data[i].toNativeMML(tag)}}
parent.appendChild(tag);
}
});
MML.munderover.Augment({
//
// Use proper version of munder, mover, or munderover, depending on
// which items are present
//
toNativeMML: function (parent) {
var type = this.type;
if (this.data[this.under] == null) {type = "mover"}
if (this.data[this.over] == null) {type = "munder"}
var tag = this.NativeMMLelement(type);
this.NativeMMLattributes(tag);
delete this.data[0].inferred;
for (var i = 0, m = this.data.length; i < m; i++)
{if (this.data[i]) {this.data[i].toNativeMML(tag)}}
parent.appendChild(tag);
}
});
if (HUB.Browser.isFirefox) {
MML.mtable.Augment({
toNativeMML: function (parent) {
//
// FF doesn't handle width, so put it in styles instead
//
if (this.width) {
var styles = (this.style||"").replace(/;\s*$/,"").split(";");
if (styles[0] === "") {styles.shift()}
styles.push("width:"+this.width);
this.style = styles.join(";");
}
this.SUPER(arguments).toNativeMML.call(this,parent);
}
});
if (!HUB.Browser.versionAtLeast("9.0")) {
MML.mlabeledtr.Augment({
toNativeMML: function (parent) {
//
// FF doesn't handle mlabeledtr, so remove the label
//
var tag = this.NativeMMLelement("mtr");
this.NativeMMLattributes(tag);
for (var i = 1, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
parent.appendChild(tag);
}
});
}
var fontDir = MathJax.OutputJax.fontDir + "/HTML-CSS/TeX/otf";
/*
* Add fix for mathvariant issues in FF
*/
nMML.Augment({
config: {
styles: {
'[mathvariant="double-struck"]': {"font-family":"MathJax_AMS, MathJax_AMS-WEB"},
'[mathvariant="script"]': {"font-family":"MathJax_Script, MathJax_Script-WEB"},
'[mathvariant="fraktur"]': {"font-family":"MathJax_Fraktur, MathJax_Fraktur-WEB"},
'[mathvariant="bold-script"]': {"font-family":"MathJax_Script, MathJax_Caligraphic-WEB", "font-weight":"bold"},
'[mathvariant="bold-fraktur"]': {"font-family":"MathJax_Fraktur, MathJax_Fraktur-WEB", "font-weight":"bold"},
'[mathvariant="monospace"]': {"font-family":"monospace"},
'[mathvariant="sans-serif"]': {"font-family":"sans-serif"},
'[mathvariant="bold-sans-serif"]': {"font-family":"sans-serif", "font-weight":"bold"},
'[mathvariant="sans-serif-italic"]': {"font-family":"sans-serif", "font-style":"italic"},
'[mathvariant="sans-serif-bold-italic"]': {"font-family":"sans-serif", "font-style":"italic", "font-weight":"bold"},
'[class="MJX-tex-oldstyle"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB"},
'[class="MJX-tex-oldstyle-bold"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB", "font-weight":"bold"},
'[class="MJX-tex-caligraphic"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB"},
'[class="MJX-tex-caligraphic-bold"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB", "font-weight":"bold"},
'@font-face /*1*/': {
"font-family": "MathJax_AMS-WEB",
"src": "url('"+fontDir+"/MathJax_AMS-Regular.otf')"
},
'@font-face /*2*/': {
"font-family": "MathJax_Script-WEB",
"src": "url('"+fontDir+"/MathJax_Script-Regular.otf')"
},
'@font-face /*3*/': {
"font-family": "MathJax_Fraktur-WEB",
"src": "url('"+fontDir+"/MathJax_Fraktur-Regular.otf')"
},
'@font-face /*4*/': {
"font-family": "MathJax_Caligraphic-WEB",
"src": "url('"+fontDir+"/MathJax_Caligraphic-Regular.otf')"
},
'@font-face /*5*/': {
"font-family": "MathJax_Fraktur-WEB", "font-weight":"bold",
"src": "url('"+fontDir+"/MathJax_Fraktur-Bold.otf')"
},
'@font-face /*6*/': {
"font-family": "MathJax_Caligraphic-WEB", "font-weight":"bold",
"src": "url('"+fontDir+"/MathJax_Caligraphic-Bold.otf')"
}
}
}
});
}
MML.math.Augment({
//
// Some browsers don't seem to add the xmlns attribute, so do it by hand.
//
toNativeMML: function (parent) {
var tag = this.NativeMMLelement(this.type), math = tag;
tag.setAttribute("xmlns",nMML.MMLnamespace);
this.NativeMMLattributes(tag);
if (nMML.widthBug) {tag = tag.appendChild(this.NativeMMLelement("mrow"))}
for (var i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
parent.appendChild(math);
//
// Firefox can't seem to get the width of <math> elements right, so
// use an <mrow> to get the actual width and set the style on the
// parent element to match. Even if we set the <math> width properly,
// it doesn't seem to propagate up to the <span> correctly.
//
if (nMML.widthBug) {parent.style.width = math.firstChild.scrollWidth+"px"}
}
});
MML.TeXAtom.Augment({
//
// Convert TeXatom to an mrow
//
toNativeMML: function (parent) {
// FIXME: Handle spacing using mpadded?
var tag = this.NativeMMLelement("mrow");
this.NativeMMLattributes(tag);
this.data[0].toNativeMML(tag);
parent.appendChild(tag);
}
});
MML.chars.Augment({
//
// Add a text node
//
toNativeMML: function (parent) {
parent.appendChild(document.createTextNode(this.toString()));
}
});
MML.entity.Augment({
//
// Add a text node
//
toNativeMML: function (parent) {
parent.appendChild(document.createTextNode(this.toString()));
}
});
MML.xml.Augment({
//
// Insert the XML verbatim
//
toNativeMML: function (parent) {
for (var i = 0, m = this.data.length; i < m; i++)
{parent.appendChild(this.data[i].cloneNode(true))}
}
});
HUB.Register.StartupHook("TeX mathchoice Ready",function () {
MML.TeXmathchoice.Augment({
//
// Get the MathML for the selected choice
//
toNativeMML: function (parent) {this.Core().toNativeMML(parent)}
});
});
//
// Loading isn't complete until the element jax is modified,
// but can't call loadComplete within the callback for "mml Jax Ready"
// (it would call NativeMML's Require routine, asking for the mml jax again)
// so wait until after the mml jax has finished processing.
//
setTimeout(MathJax.Callback(["loadComplete",nMML,"jax.js"]),0);
});
//
// Determine browser characteristics
//
HUB.Browser.Select({
MSIE: function (browser) {
var mode = (document.documentMode || 0);
nMML.msieIE8HeightBug = (mode === 8);
},
Opera: function (browser) {
nMML.operaPositionBug = true;
},
Firefox: function (browser) {
nMML.forceReflow = true;
nMML.widthBug = true;
}
});
HUB.Register.StartupHook("End Cookie",function () {
if (HUB.config.menuSettings.zoom !== "None")
{AJAX.Require("[MathJax]/extensions/MathZoom.js")}
});
})(MathJax.OutputJax.NativeMML, MathJax.Hub, MathJax.Ajax, MathJax.HTML);