Updated.

- added mathjax (freed)
- added rss.py
- updated publish.el
- etc.

2 files changed, 1154 insertions, 0 deletions

diff --git a/js/mathjax/jax/output/PreviewHTML/config.js b/js/mathjax/jax/output/PreviewHTML/config.js
new file mode 100644
index 0000000..866f2f0
--- /dev/null
+++ b/js/mathjax/jax/output/PreviewHTML/config.js
@@ -0,0 +1,56 @@
+// @license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7dn=apache-2.0.txt Apache-2.0
+/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+
+/*************************************************************
+ *
+ *  MathJax/jax/output/PreviewHTML/config.js
+ *  
+ *  Initializes the PreviewHTML OutputJax  (the main definition is in
+ *  MathJax/jax/input/PreviewHTML/jax.js, which is loaded when needed).
+ *
+ *  ---------------------------------------------------------------------
+ *  
+ *  Copyright (c) 2013-2020 The MathJax Consortium
+ * 
+ *  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.
+ */
+
+MathJax.OutputJax.PreviewHTML = MathJax.OutputJax({
+  id: "PreviewHTML",
+  version: "2.7.9",
+  directory: MathJax.OutputJax.directory + "/PreviewHTML",
+  extensionDir: MathJax.OutputJax.extensionDir + "/PreviewHTML",
+  noFastPreview: true,  // don't do fast preview for this output jax
+  
+  config: {
+    scale: 100, minScaleAdjust: 50, // global math scaling factor, and minimum adjusted scale factor
+    mtextFontInherit: false,        // to make <mtext> be in page font rather than MathJax font
+
+    linebreaks: {
+      automatic: false,   // when false, only process linebreak="newline",
+                          // when true, insert line breaks automatically in long expressions.
+
+      width: "container" // maximum width of a line for automatic line breaks (e.g. "30em").
+                         // use "container" to compute size from containing element,
+                         // use "nn% container" for a portion of the container,
+                         // use "nn%" for a portion of the window size
+    }
+    
+  }
+});
+
+if (!MathJax.Hub.config.delayJaxRegistration) {MathJax.OutputJax.PreviewHTML.Register("jax/mml")}
+
+MathJax.OutputJax.PreviewHTML.loadComplete("config.js");
+// @license-end
diff --git a/js/mathjax/jax/output/PreviewHTML/jax.js b/js/mathjax/jax/output/PreviewHTML/jax.js
new file mode 100644
index 0000000..9fc3b4c
--- /dev/null
+++ b/js/mathjax/jax/output/PreviewHTML/jax.js
@@ -0,0 +1,1098 @@
+// @license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7dn=apache-2.0.txt Apache-2.0
+/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+
+/*************************************************************
+ *
+ *  MathJax/jax/output/PreviewHTML/jax.js
+ *
+ *  Implements the PreviewHTML OutputJax that displays mathematics
+ *  using HTML to position the characters from math fonts
+ *  in their proper locations.
+ *  
+ *  ---------------------------------------------------------------------
+ *  
+ *  Copyright (c) 2013-2020 The MathJax Consortium
+ * 
+ *  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 (AJAX,HUB,HTML,PHTML) {
+  var MML;
+
+  var EVENT, TOUCH, HOVER; // filled in later
+
+  var FONTS = "'Times New Roman',Times,STIXGeneral,serif";
+  var STYLES = {
+    ".MJXp-script": {"font-size":".8em"},
+
+    ".MJXp-right": {
+      "-webkit-transform-origin":"right",
+      "-moz-transform-origin":"right",
+      "-ms-transform-origin":"right",
+      "-o-transform-origin":"right",
+      "transform-origin":"right"
+    },
+
+    ".MJXp-bold": {"font-weight":"bold"},
+    ".MJXp-italic": {"font-style":"italic"},
+    ".MJXp-scr": {"font-family":"MathJax_Script,"+FONTS},
+    ".MJXp-frak": {"font-family":"MathJax_Fraktur,"+FONTS},
+    ".MJXp-sf": {"font-family":"MathJax_SansSerif,"+FONTS},
+    ".MJXp-cal": {"font-family":"MathJax_Caligraphic,"+FONTS},
+    ".MJXp-mono": {"font-family":"MathJax_Typewriter,"+FONTS},
+    ".MJXp-largeop": {"font-size":"150%"},
+    ".MJXp-largeop.MJXp-int": {"vertical-align":"-.2em"},
+
+    ".MJXp-math": {
+      "display": "inline-block",
+      "line-height": "1.2",
+      "text-indent": "0",
+      "font-family": FONTS,
+      "white-space":"nowrap",
+      "border-collapse":"collapse"
+    },
+    ".MJXp-display": {
+      "display": "block",
+      "text-align": "center",
+      "margin": "1em 0"
+    },
+    ".MJXp-math span": {"display": "inline-block"},
+    ".MJXp-box":  {"display":"block!important", "text-align": "center"},
+    ".MJXp-box:after": {"content": '" "'},  // needed for when there is no DOCTYPE
+    ".MJXp-rule": {"display":"block!important", "margin-top":".1em"},
+    ".MJXp-char": {"display":"block!important"},
+
+    ".MJXp-mo": {"margin": "0 .15em"},
+
+    ".MJXp-mfrac": {"margin": "0 .125em", "vertical-align":".25em"},
+    ".MJXp-denom": {"display": "inline-table!important", "width":"100%"},
+    ".MJXp-denom > *": {"display": "table-row!important"},
+
+    ".MJXp-surd": {"vertical-align":"top"},
+    ".MJXp-surd > *": {"display":"block!important"},
+
+    ".MJXp-script-box > * ": {"display":"table!important", "height":"50%"},
+    ".MJXp-script-box > * > *": {"display":"table-cell!important","vertical-align":"top"},
+    ".MJXp-script-box > *:last-child > *": {"vertical-align":"bottom"},
+    ".MJXp-script-box > * > * > *": {"display":"block!important"},
+
+    ".MJXp-mphantom": {"visibility": "hidden"},
+
+    ".MJXp-munderover, .MJXp-munder": {"display":"inline-table!important"},
+    ".MJXp-over": {"display":"inline-block!important","text-align":"center"},
+    ".MJXp-over > *": {"display":"block!important"},
+    ".MJXp-munderover > *, .MJXp-munder > *": {"display":"table-row!important"},
+
+    ".MJXp-mtable": {"vertical-align":".25em", "margin":"0 .125em"},
+    ".MJXp-mtable > *": {"display":"inline-table!important", "vertical-align":"middle"},
+    ".MJXp-mtr": {"display":"table-row!important"},
+    ".MJXp-mtd": {"display":"table-cell!important","text-align":"center","padding":".5em 0 0 .5em"},
+    ".MJXp-mtr > .MJXp-mtd:first-child": {"padding-left":0},
+    ".MJXp-mtr:first-child > .MJXp-mtd": {"padding-top":0},
+    ".MJXp-mlabeledtr": {"display":"table-row!important"},
+    ".MJXp-mlabeledtr > .MJXp-mtd:first-child": {"padding-left":0},
+    ".MJXp-mlabeledtr:first-child > .MJXp-mtd": {"padding-top":0},
+    
+    ".MJXp-merror": {
+      "background-color": "#FFFF88",
+      color:   "#CC0000",
+      border:  "1px solid #CC0000",
+      padding: "1px 3px",
+      "font-style": "normal",
+      "font-size":  "90%"
+    }
+  };
+  
+  (function () {
+    for (var i = 0; i < 10; i++) {
+      var scale = "scaleX(."+i+")";
+      STYLES[".MJXp-scale"+i] = {
+        "-webkit-transform":scale,
+        "-moz-transform":scale,
+        "-ms-transform":scale,
+        "-o-transform":scale,
+        "transform":scale
+      }
+    }
+  })();
+  
+  var BIGDIMEN = 1000000;
+  var V = "V", H = "H";
+
+  PHTML.Augment({
+    settings: HUB.config.menuSettings,
+    config: {styles: STYLES},
+
+    hideProcessedMath: false,           // use display:none until all math is processed
+
+    maxStretchyParts: 1000,            // limit the number of parts allowed for
+                                       // stretchy operators. See issue 366.
+
+    Config: function () {
+      if (!this.require) {this.require = []}
+      this.SUPER(arguments).Config.call(this); var settings = this.settings;
+      if (settings.scale) {this.config.scale = settings.scale}
+      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;
+
+      //
+      //  Determine pixels per inch
+      //
+      var div = HTML.addElement(document.body,"div",{style:{width:"5in"}});
+      this.pxPerInch = div.offsetWidth/5; div.parentNode.removeChild(div);
+
+      //
+      //  Set up styles and preload web fonts
+      //
+      return AJAX.Styles(this.config.styles,["InitializePHTML",this]);
+    },
+    InitializePHTML: function () {
+    },
+    
+    preTranslate: function (state) {
+      var scripts = state.jax[this.id], i, m = scripts.length,
+          script, prev, span, div, jax;
+      //
+      //  Loop through the scripts
+      //
+      for (i = 0; i < m; i++) {
+        script = scripts[i]; if (!script.parentNode) continue;
+        //
+        //  Remove any existing output
+        //
+        prev = script.previousSibling;
+        if (prev && String(prev.className).match(/^MathJax(_PHTML)?(_Display)?( MathJax_Process(ing|ed))?$/))
+          {prev.parentNode.removeChild(prev)}
+        //
+        //  Add the span, and a div if in display mode,
+        //  then mark it as being processed
+        //
+        jax = script.MathJax.elementJax; if (!jax) continue;
+        jax.PHTML = {display: (jax.root.Get("display") === "block")}
+        span = div = HTML.Element("span",{
+	  className:"MathJax_PHTML", id:jax.inputID+"-Frame", isMathJax:true, jaxID:this.id,
+          oncontextmenu:EVENT.Menu, onmousedown: EVENT.Mousedown,
+          onmouseover:EVENT.Mouseover, onmouseout:EVENT.Mouseout, onmousemove:EVENT.Mousemove,
+	  onclick:EVENT.Click, ondblclick:EVENT.DblClick,
+          // Added for keyboard accessible menu.
+          onkeydown: EVENT.Keydown, tabIndex: HUB.getTabOrder(jax)
+        });
+	if (HUB.Browser.noContextMenu) {
+	  span.ontouchstart = TOUCH.start;
+	  span.ontouchend = TOUCH.end;
+	}
+        if (jax.PHTML.display) {
+          div = HTML.Element("div",{className:"MathJax_PHTML_Display"});
+          div.appendChild(span);
+        }
+        //
+        div.className += " MathJax_Processing";
+        script.parentNode.insertBefore(div,script);
+      }
+    },
+
+    Translate: function (script,state) {
+      if (!script.parentNode) return;
+
+      //
+      //  Get the data about the math
+      //
+      var jax = script.MathJax.elementJax, math = jax.root,
+          span = document.getElementById(jax.inputID+"-Frame"),
+          div = (jax.PHTML.display ? span.parentNode : span);
+      //
+      //  Typeset the math
+      //
+      this.initPHTML(math,span);
+//      math.setTeXclass();
+      try {math.toPreviewHTML(span)} catch (err) {
+        if (err.restart) {while (span.firstChild) {span.removeChild(span.firstChild)}}
+        throw err;
+      }
+      //
+      //  Put it in place, and remove the processing marker
+      //
+      div.className = div.className.split(/ /)[0];
+      //
+      //  Check if we are hiding the math until more is processed
+      //
+      if (this.hideProcessedMath) {
+        //
+        //  Hide the math and don't let its preview be removed
+        //
+        div.className += " MathJax_Processed";
+        if (script.MathJax.preview) {
+          jax.PHTML.preview = script.MathJax.preview;
+          delete script.MathJax.preview;
+        }
+      }
+    },
+
+    postTranslate: function (state) {
+      var scripts = state.jax[this.id];
+      if (!this.hideProcessedMath) return;
+      for (var i = 0, m = scripts.length; i < m; i++) {
+        var script = scripts[i];
+        if (script && script.MathJax.elementJax) {
+          //
+          //  Remove the processed marker
+          //
+          script.previousSibling.className = script.previousSibling.className.split(/ /)[0];
+          var data = script.MathJax.elementJax.PHTML;
+          //
+          //  Remove the preview, if any
+          //
+          if (data.preview) {
+            data.preview.innerHTML = "";
+            script.MathJax.preview = data.preview;
+            delete data.preview;
+          }
+        }
+      }
+    },
+
+    getJaxFromMath: function (math) {
+      if (math.parentNode.className.match(/MathJax_PHTML_Display/)) {math = math.parentNode}
+      do {math = math.nextSibling} while (math && math.nodeName.toLowerCase() !== "script");
+      return HUB.getJaxFor(math);
+    },
+    getHoverSpan: function (jax,math) {return jax.root.PHTMLspanElement()},
+    getHoverBBox: function (jax,span,math) {
+      var bbox = jax.root.PHTML, em = jax.PHTML.outerEm;
+      var BBOX = {w:bbox.w*em, h:bbox.h*em, d:bbox.d*em};
+      if (bbox.width) {BBOX.width = bbox.width}
+      return BBOX;
+    },
+    
+    Zoom: function (jax,span,math,Mw,Mh) {
+      //
+      //  Re-render at larger size
+      //
+      span.className = "MathJax";
+      this.idPostfix = "-zoom"; jax.root.toPHTML(span,span); this.idPostfix = "";
+      //
+      //  Get height and width of zoomed math and original math
+      //
+      span.style.position = "absolute";
+      if (!width) {math.style.position = "absolute"}
+      var zW = span.offsetWidth, zH = span.offsetHeight,
+          mH = math.offsetHeight, mW = math.offsetWidth;
+      if (mW === 0) {mW = math.parentNode.offsetWidth}; // IE7 gets mW == 0?
+      span.style.position = math.style.position = "";
+      //
+      return {Y:-EVENT.getBBox(span).h, mW:mW, mH:mH, zW:zW, zH:zH};
+    },
+
+    initPHTML: function (math,span) {},
+
+    Remove: function (jax) {
+      var span = document.getElementById(jax.inputID+"-Frame");
+      if (span) {
+        if (jax.PHTML.display) {span = span.parentNode}
+        span.parentNode.removeChild(span);
+      }
+      delete jax.PHTML;
+    },
+    
+    ID: 0, idPostfix: "",
+    GetID: function () {this.ID++; return this.ID},
+
+    VARIANT: {
+      "bold": "MJXp-bold",
+      "italic": "MJXp-italic",
+      "bold-italic": "MJXp-bold MJXp-italic",
+      "script": "MJXp-scr",
+      "bold-script": "MJXp-scr MJXp-bold",
+      "fraktur": "MJXp-frak",
+      "bold-fraktur": "MJXp-frak MJXp-bold",
+      "monospace": "MJXp-mono",
+      "sans-serif": "MJXp-sf",
+      "-tex-caligraphic": "MJXp-cal"
+    },
+    MATHSPACE: {
+      veryverythinmathspace:  1/18,
+      verythinmathspace:      2/18,
+      thinmathspace:          3/18,
+      mediummathspace:        4/18,
+      thickmathspace:         5/18,
+      verythickmathspace:     6/18,
+      veryverythickmathspace: 7/18,
+      negativeveryverythinmathspace:  -1/18,
+      negativeverythinmathspace:      -2/18,
+      negativethinmathspace:          -3/18,
+      negativemediummathspace:        -4/18,
+      negativethickmathspace:         -5/18,
+      negativeverythickmathspace:     -6/18,
+      negativeveryverythickmathspace: -7/18,
+
+      thin: .08,
+      medium: .1,
+      thick: .15,
+
+      infinity: BIGDIMEN
+    },
+    TeX: {
+      x_height:         .430554
+    },
+    pxPerInch: 72,
+    em: 16,
+
+    // ### FIXME:  add more here
+
+    DELIMITERS: {
+      "(": {dir:V},
+      "{": {dir:V, w:.58},
+      "[": {dir:V},
+      "|": {dir:V, w:.275},
+      ")": {dir:V},
+      "}": {dir:V, w:.58},
+      "]": {dir:V},
+      "/": {dir:V},
+      "\\": {dir:V},
+      "\u2223": {dir:V, w:.275},
+      "\u2225": {dir:V, w:.55},
+      "\u230A": {dir:V, w:.5},
+      "\u230B": {dir:V, w:.5},
+      "\u2308": {dir:V, w:.5},
+      "\u2309": {dir:V, w:.5},
+      "\u27E8": {dir:V, w:.5},
+      "\u27E9": {dir:V, w:.5},
+      "\u2191": {dir:V, w:.65},
+      "\u2193": {dir:V, w:.65},
+      "\u21D1": {dir:V, w:.75},
+      "\u21D3": {dir:V, w:.75},
+      "\u2195": {dir:V, w:.65},
+      "\u21D5": {dir:V, w:.75},
+      "\u27EE": {dir:V, w:.275},
+      "\u27EF": {dir:V, w:.275},
+      "\u23B0": {dir:V, w:.6},
+      "\u23B1": {dir:V, w:.6}
+    },
+
+    REMAPACCENT: {
+      "\u20D7":"\u2192",  // vector arrow
+      "'": "\u02CB",
+      "`": "\u02CA",
+      ".": "\u02D9",
+      "^": "\u02C6",
+      "-": "\u02C9",
+      "~": "\u02DC",
+      "\u00AF": "\u02C9",  // macron
+      "\u00B0": "\u02DA",  // degree sign
+      "\u00B4": "\u02CA",  // acute accent
+      "\u0300": "\u02CB",  // combining grave
+      "\u0301": "\u02CA",  // combining acute
+      "\u0302": "\u02C6",  // combining circumflex
+      "\u0303": "\u02DC",  // combinig tilde
+      "\u0304": "\u02C9",  // combining macron
+      "\u0305": "\u02C9",  // combining overline
+      "\u0306": "\u02D8",  // combining breve 
+      "\u0307": "\u02D9",  // combining dot
+      "\u0308": "\u00A8",  // combining double dot
+      "\u030C": "\u02C7"   // combining caron
+    },
+    REMAPACCENTUNDER: {
+    },
+    
+    length2em: function (length,size) {
+      if (typeof(length) !== "string") {length = length.toString()}
+      if (length === "") {return ""}
+      if (length === MML.SIZE.NORMAL) {return 1}
+      if (length === MML.SIZE.BIG)    {return 2}
+      if (length === MML.SIZE.SMALL)  {return .71}
+      if (this.MATHSPACE[length])     {return this.MATHSPACE[length]}
+      var match = length.match(/^\s*([-+]?(?:\.\d+|\d+(?:\.\d*)?))?(pt|em|ex|mu|px|pc|in|mm|cm|%)?/);
+      var m = parseFloat(match[1]||"1"), unit = match[2];
+      if (size == null) {size = 1}
+      if (unit === "em") {return m}
+      if (unit === "ex") {return m * this.TeX.x_height}
+      if (unit === "%")  {return m / 100 * size}
+      if (unit === "px") {return m / this.em}
+      if (unit === "pt") {return m / 10}                      // 10 pt to an em
+      if (unit === "pc") {return m * 1.2}                     // 12 pt to a pc
+      if (unit === "in") {return m * this.pxPerInch / this.em}
+      if (unit === "cm") {return m * this.pxPerInch / this.em / 2.54}  // 2.54 cm to an inch
+      if (unit === "mm") {return m * this.pxPerInch / this.em / 25.4}  // 10 mm to a cm
+      if (unit === "mu") {return m / 18}                     // 18mu to an em for the scriptlevel
+      return m*size;  // relative to given size (or 1em as default)
+    },
+
+    Em: function (m) {
+      if (Math.abs(m) < .001) return "0em";
+      return (m.toFixed(3).replace(/\.?0+$/,""))+"em";
+    },
+
+    arrayEntry: function (a,i) {return a[Math.max(0,Math.min(i,a.length-1))]}
+
+  });
+
+  MathJax.Hub.Register.StartupHook("mml Jax Ready",function () {
+    MML = MathJax.ElementJax.mml;
+
+    MML.mbase.Augment({
+      toPreviewHTML: function (span,options) {
+        return this.PHTMLdefaultSpan(span,options);
+      },
+
+      PHTMLdefaultSpan: function (span,options) {
+        if (!options) options = {};
+        span = this.PHTMLcreateSpan(span);
+        this.PHTMLhandleStyle(span);
+        this.PHTMLhandleColor(span);
+        if (this.isToken) this.PHTMLhandleToken(span);
+        for (var i = 0, m = this.data.length; i < m; i++) this.PHTMLaddChild(span,i,options);
+        return span;
+      },
+      PHTMLaddChild: function (span,i,options) {
+        var child = this.data[i];
+        if (child) {
+          if (options.childSpans)
+            span = HTML.addElement(span,"span",{className:options.className});
+          child.toPreviewHTML(span);
+          if (!options.noBBox) {
+            this.PHTML.w += child.PHTML.w + child.PHTML.l + child.PHTML.r;
+            if (child.PHTML.h > this.PHTML.h) this.PHTML.h = child.PHTML.h;
+            if (child.PHTML.d > this.PHTML.d) this.PHTML.d = child.PHTML.d;
+            if (child.PHTML.t > this.PHTML.t) this.PHTML.t = child.PHTML.t;
+            if (child.PHTML.b > this.PHTML.b) this.PHTML.b = child.PHTML.b;
+          }
+        } else if (options.forceChild) {HTML.addElement(span,"span")}
+      },
+      PHTMLstretchChild: function (i,H,D) {
+        var data = this.data[i];
+        if (data && data.PHTMLcanStretch("Vertical",H,D)) {
+          var bbox = this.PHTML, dbox = data.PHTML, w = dbox.w;
+          data.PHTMLstretchV(H,D);
+          bbox.w += dbox.w - w;
+          if (dbox.h > bbox.h) bbox.h = dbox.h;
+          if (dbox.d > bbox.d) bbox.d = dbox.d;
+        }
+      },
+
+      PHTMLcreateSpan: function (span) {
+        if (!this.PHTML) this.PHTML = {};
+        this.PHTML = {w:0, h:0, d:0, l:0, r:0, t:0, b:0};
+        if (this.inferred) return span;
+        //  ### FIXME:  This is a hack to handle the different spacing of the
+        //  ### integral sign in Times compared to CM fonts
+        if (this.type === "mo" && this.data.join("") === "\u222B") {PHTML.lastIsInt = true}
+        else if (this.type !== "mspace" || this.width !== "negativethinmathspace") {PHTML.lastIsInt = false}
+        //  ###
+        if (!this.PHTMLspanID) {this.PHTMLspanID = PHTML.GetID()};
+        var id = (this.id || "MJXp-Span-"+this.PHTMLspanID);
+        return HTML.addElement(span,"span",{className:"MJXp-"+this.type, id:id});
+      },
+      PHTMLspanElement: function () {
+        if (!this.PHTMLspanID) {return null}
+        return document.getElementById(this.id||"MJXp-Span-"+this.PHTMLspanID);
+      },
+
+      PHTMLhandleToken: function (span) {
+        var values = this.getValues("mathvariant");
+        if (values.mathvariant !== MML.VARIANT.NORMAL) {
+          span.className += " "+PHTML.VARIANT[values.mathvariant];
+        }
+      },
+
+      PHTMLhandleStyle: function (span) {
+        if (this.style) span.style.cssText = this.style;
+      },
+
+      PHTMLhandleColor: function (span) {
+        if (this.mathcolor) {span.style.color = this.mathcolor}
+        if (this.mathbackground) {span.style.backgroundColor = this.mathbackground}
+      },
+
+      PHTMLhandleScriptlevel: function (span) {
+        // ### FIXME:  Need to prevent getting too small
+        // ### and should keep track of scaling so it can be compensated for
+        var level = this.Get("scriptlevel");
+        if (level) span.className += " MJXp-script";
+      },
+
+      PHTMLhandleText: function (span,text) {
+        var c, n;
+        var H = 0, D = 0, W = 0;
+        for (var i = 0, m = text.length; i < m; i++) {
+          n = text.charCodeAt(i); c = text.charAt(i);
+          if (n >= 0xD800 && n < 0xDBFF) {
+            i++; n = (((n-0xD800)<<10)+(text.charCodeAt(i)-0xDC00))+0x10000;
+          }
+          var h = .7, d = .22, w = .5;
+          if (n < 127) {
+            if (c.match(/[A-Za-ehik-or-xz0-9]/)) d = 0;
+            if (c.match(/[A-HK-Z]/)) {w = .67} else if (c.match(/[IJ]/)) {w = .36}
+            if (c.match(/[acegm-su-z]/)) {h = .45} else if (c.match(/[ij]/)) {h = .75}
+            if (c.match(/[ijlt]/)) w = .28;
+          }
+          if (PHTML.DELIMITERS[c]) {w = PHTML.DELIMITERS[c].w || .4}
+          // ### FIXME:  handle Greek
+          // ### Combining diacriticals (all sets), spacing modifiers
+          // ### arrows (all sets), widths of braces
+          if (h > H) H = h; if (d > D) D = d; W += w;
+        }
+        if (!this.CHML) this.PHTML = {};
+        this.PHTML = {h:.9, d:.3, w:W, l:0, r:0, t:H, b:D};
+        HTML.addText(span,text);
+      },
+
+      PHTMLbboxFor: function (n) {
+        if (this.data[n] && this.data[n].PHTML) return this.data[n].PHTML;
+        return {w:0, h:0, d:0, l:0, r:0, t:0, b:0};
+      },
+
+      PHTMLcanStretch: function (direction,H,D) {
+        if (this.isEmbellished()) {
+          var core = this.Core();
+          if (core && core !== this) {return core.PHTMLcanStretch(direction,H,D)}
+        }
+        return false;
+      },
+      PHTMLstretchV: function (h,d) {},
+      PHTMLstretchH: function (w) {},
+
+      CoreParent: function () {
+        var parent = this;
+        while (parent && parent.isEmbellished() &&
+               parent.CoreMO() === this && !parent.isa(MML.math)) {parent = parent.Parent()}
+        return parent;
+      },
+      CoreText: function (parent) {
+        if (!parent) {return ""}
+        if (parent.isEmbellished()) {return parent.CoreMO().data.join("")}
+        while ((parent.isa(MML.mrow) || parent.isa(MML.TeXAtom) ||
+                parent.isa(MML.mstyle) || parent.isa(MML.mphantom)) &&
+                parent.data.length === 1 && parent.data[0]) {parent = parent.data[0]}
+        if (!parent.isToken) {return ""} else {return parent.data.join("")}
+      }
+
+    });
+
+    MML.chars.Augment({
+      toPreviewHTML: function (span) {
+        var text = this.toString().replace(/[\u2061-\u2064]/g,"");
+        this.PHTMLhandleText(span,text);
+      }
+    });
+    MML.entity.Augment({
+      toPreviewHTML: function (span) {
+        var text = this.toString().replace(/[\u2061-\u2064]/g,"");
+        this.PHTMLhandleText(span,text);
+      }
+    });
+
+    MML.math.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span);
+        if (this.Get("display") === "block") {span.className += " MJXp-display"}
+        return span;
+      }
+    });
+
+    MML.mo.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span);
+        this.PHTMLadjustAccent(span);
+        var values = this.getValues("lspace","rspace","scriptlevel","displaystyle","largeop");
+        if (values.scriptlevel === 0) {
+          this.PHTML.l = PHTML.length2em(values.lspace);
+          this.PHTML.r = PHTML.length2em(values.rspace);
+          span.style.marginLeft = PHTML.Em(this.PHTML.l);
+          span.style.marginRight = PHTML.Em(this.PHTML.r);
+        } else {
+          this.PHTML.l = .15;
+          this.PHTML.r = .1;
+        }
+        if (values.displaystyle && values.largeop) {
+          var box = HTML.Element("span",{className:"MJXp-largeop"});
+          box.appendChild(span.firstChild); span.appendChild(box);
+          this.PHTML.h *= 1.2; this.PHTML.d *= 1.2;
+          if (this.data.join("") === "\u222B") box.className += " MJXp-int";
+        }
+        // ### FIXME:  Handle embellished op spacing
+        // ### FIXME:  Remap minus signs
+        return span;
+      },
+      PHTMLadjustAccent: function (span) {
+        var parent = this.CoreParent();
+        if (parent && parent.isa(MML.munderover) && 
+            this.CoreText(parent.data[parent.base]).length === 1) {
+          var over = parent.data[parent.over], under = parent.data[parent.under];
+          var c = this.data.join(""), C;
+          if (over && this === over.CoreMO() && parent.Get("accent")) {C = PHTML.REMAPACCENT[c]}
+          else if (under && this === under.CoreMO() && parent.Get("accentunder")) {C = PHTML.REMAPACCENTUNDER[c]}
+          if (C) c = span.innerHTML = C;
+          if (c.match(/[\u02C6-\u02DC\u00A8]/)) {this.PHTML.acc = -.52}
+          else if (c === "\u2192") {this.PHTML.acc = -.15; this.PHTML.vec = true}
+        }
+      },
+      PHTMLcanStretch: function (direction,H,D) {
+        if (!this.Get("stretchy")) {return false}
+        var c = this.data.join("");
+        if (c.length > 1) {return false}
+        c = PHTML.DELIMITERS[c];
+        var stretch = (c && c.dir === direction.substr(0,1));
+        if (stretch) {
+          stretch = (this.PHTML.h !== H || this.PHTML.d !== D ||
+            (this.Get("minsize",true) || this.Get("maxsize",true)));
+        }
+        return stretch;
+      },
+      PHTMLstretchV: function (h,d) {
+        var span = this.PHTMLspanElement(), bbox = this.PHTML; //bbox.w = .4; // ## adjust width
+        var values = this.getValues("symmetric","maxsize","minsize");
+        if (values.symmetric) {H = 2*Math.max(h-.25,d+.25)} else {H = h + d}
+        values.maxsize = PHTML.length2em(values.maxsize,bbox.h+bbox.d);
+        values.minsize = PHTML.length2em(values.minsize,bbox.h+bbox.d);
+        H = Math.max(values.minsize,Math.min(values.maxsize,H));
+        var scale = H/(bbox.h+bbox.d-.3);  // ### adjusted for extra tall bbox
+        var box = HTML.Element("span",{style:{"font-size":PHTML.Em(scale)}});
+        if (scale > 1.25) {
+          var sX = Math.ceil(1.25/scale * 10);
+          box.className = "MJXp-right MJXp-scale"+sX;
+          box.style.marginLeft = PHTML.Em(bbox.w*(sX/10-1)+.07);
+          bbox.w *= scale*sX/10;
+        }
+        box.appendChild(span.firstChild); span.appendChild(box);
+        if (values.symmetric) span.style.verticalAlign = PHTML.Em(.25*(1-scale));
+      }
+    });
+
+    MML.mspace.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span);
+        var values = this.getValues("height","depth","width");
+        var w = PHTML.length2em(values.width),
+            h = PHTML.length2em(values.height),
+            d = PHTML.length2em(values.depth);
+        var bbox = this.PHTML;
+        bbox.w = w; bbox.h = h; bbox.d = d;
+        if (w < 0) {
+          //  ### FIXME:  lastIsInt hack
+          if (!PHTML.lastIsInt) span.style.marginLeft = PHTML.Em(w);
+          w = 0;
+        }
+        span.style.width = PHTML.Em(w);
+        span.style.height = PHTML.Em(h+d);
+        if (d) span.style.verticalAlign = PHTML.Em(-d);
+        return span;
+      }
+    });
+
+    MML.mpadded.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span,{
+          childSpans:true, className:"MJXp-box", forceChild:true
+        });
+        var child = span.firstChild;
+        var values = this.getValues("width","height","depth","lspace","voffset");
+        var dimen = this.PHTMLdimen(values.lspace);
+        var T = 0, B = 0, L = dimen.len, R = -dimen.len, V = 0;
+        if (values.width !== "") {
+          dimen = this.PHTMLdimen(values.width,"w",0);
+          if (dimen.pm) {R += dimen.len} else {span.style.width = PHTML.Em(dimen.len)}
+        }
+        if (values.height !== "") {
+          dimen = this.PHTMLdimen(values.height,"h",0);
+          if (!dimen.pm) T += -this.PHTMLbboxFor(0).h;
+          T += dimen.len;
+        }
+        if (values.depth !== "")  {
+          dimen = this.PHTMLdimen(values.depth,"d",0);
+          if (!dimen.pm) {B += -this.PHTMLbboxFor(0).d; V += -dimen.len}
+          B += dimen.len;
+        }
+        if (values.voffset !== "") {
+          dimen = this.PHTMLdimen(values.voffset);
+          T -= dimen.len; B += dimen.len;
+          V += dimen.len;
+        }
+        if (T) child.style.marginTop = PHTML.Em(T);
+        if (B) child.style.marginBottom = PHTML.Em(B);
+        if (L) child.style.marginLeft = PHTML.Em(L);
+        if (R) child.style.marginRight = PHTML.Em(R);
+        if (V) span.style.verticalAlign = PHTML.Em(V);
+        return span;
+      },
+      PHTMLdimen: function (length,d,m) {
+        if (m == null) {m = -BIGDIMEN}
+        length = String(length);
+        var match = length.match(/width|height|depth/);
+        var size = (match ? this.PHTML[match[0].charAt(0)] : (d ? this.PHTML[d] : 0));
+        return {len: PHTML.length2em(length,size)||0, pm: !!length.match(/^[-+]/)};
+      }
+    });
+
+    MML.munderover.Augment({
+      toPreviewHTML: function (span) {
+	var values = this.getValues("displaystyle","accent","accentunder","align");
+        var base = this.data[this.base];
+	if (!values.displaystyle && base != null &&
+	    (base.movablelimits || base.CoreMO().Get("movablelimits"))) {
+          span = MML.msubsup.prototype.toPreviewHTML.call(this,span);
+          //
+          //  Change class to msubsup for CSS rules.
+          //  ### FIXME: should this be handled via adding another class instead?
+          //
+          span.className = span.className.replace(/munderover/,"msubsup");
+          return span;
+        }
+        span = this.PHTMLdefaultSpan(span,{childSpans:true, className:"", noBBox:true});
+        var obox = this.PHTMLbboxFor(this.over),
+            ubox = this.PHTMLbboxFor(this.under),
+            bbox = this.PHTMLbboxFor(this.base),
+            BBOX = this.PHTML, acc = obox.acc;
+        if (this.data[this.over]) {
+          if (span.lastChild.firstChild){
+            span.lastChild.firstChild.style.marginLeft = obox.l =
+              span.lastChild.firstChild.style.marginRight = obox.r = 0;
+          }
+          var over = HTML.Element("span",{},[["span",{className:"MJXp-over"}]]);
+          over.firstChild.appendChild(span.lastChild);
+          if (span.childNodes.length > (this.data[this.under] ? 1 : 0))
+            over.firstChild.appendChild(span.firstChild);
+          this.data[this.over].PHTMLhandleScriptlevel(over.firstChild.firstChild);
+          if (acc != null) {
+            if (obox.vec) {
+              over.firstChild.firstChild.firstChild.style.fontSize = "60%";
+              obox.h *= .6; obox.d *= .6; obox.w *= .6;
+            }
+            acc = acc - obox.d + .1; if (bbox.t != null) {acc += bbox.t - bbox.h}
+            over.firstChild.firstChild.style.marginBottom = PHTML.Em(acc);
+          }
+          if (span.firstChild) {span.insertBefore(over,span.firstChild)}
+            else {span.appendChild(over)}
+        }
+        if (this.data[this.under]) {
+          if (span.lastChild.firstChild) {
+            span.lastChild.firstChild.style.marginLeft = ubox.l =
+              span.lastChild.firstChild.marginRight = ubox.r = 0;
+          }
+          this.data[this.under].PHTMLhandleScriptlevel(span.lastChild);
+        }
+        BBOX.w = Math.max(.8*obox.w,.8*ubox.w,bbox.w);
+        BBOX.h = .8*(obox.h+obox.d+(acc||0)) + bbox.h;
+        BBOX.d = bbox.d + .8*(ubox.h+ubox.d);
+        return span;
+      }
+    });
+
+    MML.msubsup.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span,{noBBox:true});
+        if (!this.data[this.base]) {
+          if (span.firstChild) {span.insertBefore(HTML.Element("span"),span.firstChild)}
+            else {span.appendChild(HTML.Element("span"))}
+        }
+        var base = this.data[this.base], sub = this.data[this.sub], sup = this.data[this.sup];
+        if (!base) base = {bbox: {h:.8, d:.2}};
+        span.firstChild.style.marginRight = ".05em";
+        var h = Math.max(.4,base.PHTML.h-.4),
+            d = Math.max(.2,base.PHTML.d+.1);
+        var bbox = this.PHTML;
+        if (sup && sub) {
+          var box = HTML.Element("span",{className:"MJXp-script-box", style:{
+            height: PHTML.Em(h+sup.PHTML.h*.8 + d+sub.PHTML.d*.8),
+            "vertical-align": PHTML.Em(-d-sub.PHTML.d*.8)
+          }},[
+            ["span",{},[["span",{},[["span",{
+              style:{"margin-bottom":PHTML.Em(-(sup.PHTML.d-.05))}
+            }]]]]],
+            ["span",{},[["span",{},[["span",{
+              style:{"margin-top":PHTML.Em(-(sup.PHTML.h-.05))}
+            }]]]]]
+          ]);
+          sub.PHTMLhandleScriptlevel(box.firstChild);
+          sup.PHTMLhandleScriptlevel(box.lastChild);
+          box.firstChild.firstChild.firstChild.appendChild(span.lastChild);
+          box.lastChild.firstChild.firstChild.appendChild(span.lastChild);
+          span.appendChild(box);
+          bbox.h = Math.max(base.PHTML.h,sup.PHTML.h*.8+h);
+          bbox.d = Math.max(base.PHTML.d,sub.PHTML.d*.8+d);
+          bbox.w = base.PHTML.w + Math.max(sup.PHTML.w,sub.PHTML.w) + .07;
+        } else if (sup) {
+          span.lastChild.style.verticalAlign = PHTML.Em(h);
+          sup.PHTMLhandleScriptlevel(span.lastChild);
+          bbox.h = Math.max(base.PHTML.h,sup.PHTML.h*.8+h);
+          bbox.d = Math.max(base.PHTML.d,sup.PHTML.d*.8-h);
+          bbox.w = base.PHTML.w + sup.PHTML.w + .07;
+        } else if (sub) {
+          span.lastChild.style.verticalAlign = PHTML.Em(-d);
+          sub.PHTMLhandleScriptlevel(span.lastChild);
+          bbox.h = Math.max(base.PHTML.h,sub.PHTML.h*.8-d);
+          bbox.d = Math.max(base.PHTML.d,sub.PHTML.d*.8+d);
+          bbox.w = base.PHTML.w + sub.PHTML.w + .07;
+        }
+        return span;
+      }
+    });
+
+    MML.mfrac.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span,{
+          childSpans:true, className:"MJXp-box", forceChild:true, noBBox:true
+        });
+        var values = this.getValues("linethickness","displaystyle");
+        if (!values.displaystyle) {
+          if (this.data[0]) this.data[0].PHTMLhandleScriptlevel(span.firstChild);
+          if (this.data[1]) this.data[1].PHTMLhandleScriptlevel(span.lastChild);
+        }
+        var denom = HTML.Element("span",{className:"MJXp-box"},[
+          ["span",{className:"MJXp-denom"},[                        // inline-table
+            ["span",{},[["span",{className:"MJXp-rule",style:{height:"1em"}}]]],
+            ["span"]                                                // spans are table-row
+          ]]
+        ]);
+        denom.firstChild.lastChild.appendChild(span.lastChild);
+        span.appendChild(denom);
+        var nbox = this.PHTMLbboxFor(0), dbox = this.PHTMLbboxFor(1), bbox = this.PHTML;
+        bbox.w = Math.max(nbox.w,dbox.w) * .8;
+        bbox.h = nbox.h+nbox.d + .1 + .25;
+        bbox.d = dbox.h+dbox.d - .25;
+        bbox.l = bbox.r = .125;
+        values.linethickness = Math.max(0,PHTML.length2em(values.linethickness||"0",0));
+        if (values.linethickness) {
+          var rule = denom.firstChild.firstChild.firstChild;
+          var t = PHTML.Em(values.linethickness);
+          rule.style.borderTop = "none";
+          rule.style.borderBottom = (values.linethickness < .15 ? "1px" : t)+" solid";
+          rule.style.margin = t+" 0";
+          t = values.linethickness;
+          denom.style.marginTop = PHTML.Em(3*t-1.2);
+          span.style.verticalAlign = PHTML.Em(1.5*t + .1);
+          bbox.h += 1.5*t - .1; bbox.d += 1.5*t;
+        } else {
+          denom.style.marginTop = "-.7em";
+        }
+        return span;
+      }
+    });
+
+    MML.msqrt.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span,{
+          childSpans:true, className:"MJXp-box", forceChild:true, noBBox:true
+        });
+        this.PHTMLlayoutRoot(span,span.firstChild);
+        return span;
+      },
+      PHTMLlayoutRoot: function (span,base) {
+        var bbox = this.PHTMLbboxFor(0);
+        var scale = Math.ceil((bbox.h+bbox.d+.14)*100), t = PHTML.Em(14/scale);
+        var surd = HTML.Element("span",{className:"MJXp-surd"},[
+          ["span",{style:{"font-size":scale+"%","margin-top":t}},["\u221A"]]
+        ]);
+        var root = HTML.Element("span",{className:"MJXp-root"},[
+          ["span",{className:"MJXp-rule",style:{"border-top":".08em solid"}}]
+        ]);
+        var W = (1.2/2.2)*scale/100; // width-of-surd = (height/H-to-W-ratio)
+        if (scale > 150) {
+          var sX = Math.ceil(150/scale * 10);
+          surd.firstChild.className = "MJXp-right MJXp-scale"+sX;
+          surd.firstChild.style.marginLeft = PHTML.Em(W*(sX/10-1)/scale*100);
+          W = W*sX/10;
+          root.firstChild.style.borderTopWidth = PHTML.Em(.08/Math.sqrt(sX/10));
+        }
+        root.appendChild(base);
+        span.appendChild(surd);
+        span.appendChild(root);
+        this.PHTML.h = bbox.h + .18; this.PHTML.d = bbox.d;
+        this.PHTML.w = bbox.w + W; 
+        return span;
+      }
+    });
+
+    MML.mroot.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span,{
+          childSpans:true, className:"MJXp-box", forceChild:true, noBBox:true
+        });
+        var rbox = this.PHTMLbboxFor(1), root = span.removeChild(span.lastChild);
+        var sqrt = this.PHTMLlayoutRoot(HTML.Element("span"),span.firstChild);
+        root.className = "MJXp-script";  // ### FIXME: should be scriptscript
+        var scale = parseInt(sqrt.firstChild.firstChild.style.fontSize);
+        var v = .55*(scale/120) + rbox.d*.8, r = -.6*(scale/120);
+        if (scale > 150) {r *= .95*Math.ceil(150/scale*10)/10}
+        root.style.marginRight = PHTML.Em(r); root.style.verticalAlign = PHTML.Em(v);
+        if (-r > rbox.w*.8) root.style.marginLeft = PHTML.Em(-r-rbox.w*.8); // ### depends on rbox.w
+        span.appendChild(root); span.appendChild(sqrt);
+        this.PHTML.w += Math.max(0,rbox.w*.8+r);
+        this.PHTML.h = Math.max(this.PHTML.h,rbox.h*.8+v);
+        return span;
+      },
+      PHTMLlayoutRoot: MML.msqrt.prototype.PHTMLlayoutRoot
+    });
+    
+    MML.mfenced.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLcreateSpan(span);
+        this.PHTMLhandleStyle(span);
+        this.PHTMLhandleColor(span);
+        //
+        //  Make row of open, data, sep, ... data, close
+        //
+        this.addFakeNodes();
+        this.PHTMLaddChild(span,"open",{});
+        for (var i = 0, m = this.data.length; i < m; i++) {
+          this.PHTMLaddChild(span,"sep"+i,{});
+          this.PHTMLaddChild(span,i,{});
+        }
+        this.PHTMLaddChild(span,"close",{});
+        //
+        //  Check for streching the elements
+        //
+        var H = this.PHTML.h, D = this.PHTML.d;
+        this.PHTMLstretchChild("open",H,D);
+        for (i = 0, m = this.data.length; i < m; i++) {
+          this.PHTMLstretchChild("sep"+i,H,D);
+          this.PHTMLstretchChild(i,H,D);
+        }
+        this.PHTMLstretchChild("close",H,D);
+        return span;
+      }
+    });
+
+    MML.mrow.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span);
+        var H = this.PHTML.h, D = this.PHTML.d;
+        for (var i = 0, m = this.data.length; i < m; i++) this.PHTMLstretchChild(i,H,D);
+        return span;
+      }
+    });
+
+    MML.mstyle.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span);
+        this.PHTMLhandleScriptlevel(span);
+        return span;
+      }
+    });
+
+    MML.TeXAtom.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span);
+        // ### FIXME: handle TeX class?
+        span.className = "MJXp-mrow";
+        return span;
+      }
+    });
+
+    MML.mtable.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLdefaultSpan(span,{noBBox:true});
+        var values = this.getValues("columnalign","rowalign","columnspacing","rowspacing",
+                                    "columnwidth","equalcolumns","equalrows",
+                                    "columnlines","rowlines","frame","framespacing",
+                                    "align","width");
+        var SPLIT = MathJax.Hub.SplitList, i, m, j, n;
+        var CSPACE = SPLIT(values.columnspacing),
+            RSPACE = SPLIT(values.rowspacing),
+            CALIGN = SPLIT(values.columnalign),
+            RALIGN = SPLIT(values.rowalign);
+        for (i = 0, m = CSPACE.length; i < m; i++) {CSPACE[i] = PHTML.length2em(CSPACE[i])}
+        for (i = 0, m = RSPACE.length; i < m; i++) {RSPACE[i] = PHTML.length2em(RSPACE[i])}
+
+        var table = HTML.Element("span");
+        while (span.firstChild) table.appendChild(span.firstChild);
+        span.appendChild(table);
+        var H = 0, W = 0;
+        for (i = 0, m = this.data.length; i < m; i++) {
+          var row = this.data[i];
+          if (row) {
+            var rspace = PHTML.arrayEntry(RSPACE,i-1), ralign = PHTML.arrayEntry(RALIGN,i);
+            var rbox = row.PHTML, rspan = row.PHTMLspanElement();
+            rspan.style.verticalAlign = ralign;
+            var k = (row.type === "mlabeledtr" ? 1 : 0);
+            for (j = 0, n = row.data.length; j < n-k; j++) {
+              var cell = row.data[j+k];
+              if (cell) {
+                var cspace = PHTML.arrayEntry(CSPACE,j-1), calign = PHTML.arrayEntry(CALIGN,j);
+                var cspan = cell.PHTMLspanElement();
+                if (j) {rbox.w += cspace; cspan.style.paddingLeft = PHTML.Em(cspace)}
+                if (i) cspan.style.paddingTop = PHTML.Em(rspace);
+                cspan.style.textAlign = calign;
+              }
+            }
+            H += rbox.h + rbox.d; if (i) {H += rspace}
+            if (rbox.w > W) W = rbox.w;
+          }
+        }
+        var bbox = this.PHTML;
+        bbox.w = W; bbox.h = H/2 + .25; bbox.d = H/2 - .25;
+        bbox.l = bbox.r = .125;
+        return span;
+      }
+    });
+    MML.mlabeledtr.Augment({
+      PHTMLdefaultSpan: function (span,options) {
+        if (!options) options = {};
+        span = this.PHTMLcreateSpan(span);
+        this.PHTMLhandleStyle(span);
+        this.PHTMLhandleColor(span);
+        if (this.isToken) this.PHTMLhandleToken(span);
+        // skip label for now
+        for (var i = 1, m = this.data.length; i < m; i++) this.PHTMLaddChild(span,i,options);
+        return span;
+      }
+    });
+
+    MML.semantics.Augment({
+      toPreviewHTML: function (span) {
+        span = this.PHTMLcreateSpan(span);
+        if (this.data[0]) {
+          this.data[0].toPreviewHTML(span);
+          MathJax.Hub.Insert(this.data[0].PHTML||{},this.PHTML);
+        }
+        return span;
+      }
+    });
+    MML.annotation.Augment({toPreviewHTML: function(span) {}});
+    MML["annotation-xml"].Augment({toPreviewHTML: function(span) {}});
+
+    //
+    //  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 PreviewHTML's Require routine, asking for the mml jax again)
+    //  so wait until after the mml jax has finished processing.
+    //  
+    //  We also need to wait for the onload handler to run, since the loadComplete
+    //  will call Config and Startup, which need to modify the body.
+    //
+    MathJax.Hub.Register.StartupHook("onLoad",function () {
+      setTimeout(MathJax.Callback(["loadComplete",PHTML,"jax.js"]),0);
+    });
+  });
+
+  MathJax.Hub.Register.StartupHook("End Cookie", function () {  
+    if (HUB.config.menuSettings.zoom !== "None")
+      {AJAX.Require("[MathJax]/extensions/MathZoom.js")}
+  });
+    
+})(MathJax.Ajax,MathJax.Hub,MathJax.HTML,MathJax.OutputJax.PreviewHTML);
+// @license-end