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AutoLaTeX/MathJax/jax/output/HTML-CSS/autoload/maction.js
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AutoLaTeX/MathJax/jax/output/HTML-CSS/autoload/maction.js
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/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/*************************************************************
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*
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* MathJax/jax/output/HTML-CSS/autoload/maction.js
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*
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* Implements the HTML-CSS output for <maction> elements.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2010-2017 The MathJax Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function () {
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var VERSION = "2.7.2";
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var MML = MathJax.ElementJax.mml,
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HTMLCSS = MathJax.OutputJax["HTML-CSS"];
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var currentTip, hover, clear;
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//
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// Add configuration for tooltips
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//
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var CONFIG = HTMLCSS.config.tooltip = MathJax.Hub.Insert({
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delayPost: 600, delayClear: 600,
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offsetX: 10, offsetY: 5
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},HTMLCSS.config.tooltip||{});
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MML.maction.Augment({
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HTMLtooltip: HTMLCSS.addElement(document.body,"div",{id:"MathJax_Tooltip"}),
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toHTML: function (span,HW,D) {
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var selected = this.selected();
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if (selected.type == "null") {
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span = this.HTMLcreateSpan(span);
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span.bbox = this.HTMLzeroBBox();
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return span;
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}
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span = this.HTMLcreateSpan(span); span.bbox = null;
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span.scale = this.HTMLgetScale();
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var box = selected.toHTML(span);
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if (D != null) {HTMLCSS.Remeasured(selected.HTMLstretchV(span,HW,D),span)}
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else if (HW != null) {
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HTMLCSS.Remeasured(selected.HTMLstretchH(span,HW),span)
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} else {HTMLCSS.Measured(box,span)}
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this.HTMLhandleHitBox(span);
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this.HTMLhandleSpace(span);
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this.HTMLhandleColor(span);
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return span;
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},
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HTMLhandleHitBox: function (span,postfix) {
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var frame;
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if (HTMLCSS.msieHitBoxBug) {
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// margin-left doesn't work on inline-block elements in IE, so put it in a SPAN
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var box = HTMLCSS.addElement(span,"span",{isMathJax:true});
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frame = HTMLCSS.createFrame(box,span.bbox.h,span.bbox.d,span.bbox.w,0,"none");
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span.insertBefore(box,span.firstChild); // move below the content
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box.style.marginRight = HTMLCSS.Em(-span.bbox.w);
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if (HTMLCSS.msieInlineBlockAlignBug)
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{frame.style.verticalAlign = HTMLCSS.Em(HTMLCSS.getHD(span).d-span.bbox.d)}
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} else {
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frame = HTMLCSS.createFrame(span,span.bbox.h,span.bbox.d,span.bbox.w,0,"none");
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span.insertBefore(frame,span.firstChild); // move below the content
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frame.style.marginRight = HTMLCSS.Em(-span.bbox.w);
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}
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frame.className = "MathJax_HitBox";
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frame.id = "MathJax-HitBox-" + this.spanID + (postfix||"") + HTMLCSS.idPostfix;
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var type = this.Get("actiontype");
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if (this.HTMLaction[type]) {this.HTMLaction[type].call(this,span,frame,this.Get("selection"))}
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},
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HTMLstretchH: MML.mbase.HTMLstretchH,
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HTMLstretchV: MML.mbase.HTMLstretchV,
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//
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// Implementations for the various actions
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//
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HTMLaction: {
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toggle: function (span,frame,selection) {
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this.selection = selection;
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span.onclick = MathJax.Callback(["HTMLclick",this]);
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frame.style.cursor = span.childNodes[1].style.cursor = "pointer";
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},
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statusline: function (span,frame,selection) {
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span.onmouseover = MathJax.Callback(["HTMLsetStatus",this]);
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span.onmouseout = MathJax.Callback(["HTMLclearStatus",this]);
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span.onmouseover.autoReset = span.onmouseout.autoReset = true;
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frame.style.cursor = span.childNodes[1].style.cursor = "default";
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},
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tooltip: function(span,frame,selection) {
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if (this.data[1] && this.data[1].isToken) {
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span.title = span.alt = this.data[1].data.join("");
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} else {
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span.onmouseover = MathJax.Callback(["HTMLtooltipOver",this]);
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span.onmouseout = MathJax.Callback(["HTMLtooltipOut",this]);
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span.onmouseover.autoReset = span.onmouseout.autoReset = true;
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}
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frame.style.cursor = span.childNodes[1].style.cursor = "default";
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}
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},
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//
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// Handle a click on the maction element
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// (remove the original rendering and rerender)
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//
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HTMLclick: function (event) {
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this.selection++;
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if (this.selection > this.data.length) {this.selection = 1}
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var math = this; while (math.type !== "math") {math = math.inherit}
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var jax = MathJax.Hub.getJaxFor(math.inputID), hover = !!jax.hover;
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jax.Update();
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if (hover) {
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var span = document.getElementById(jax.inputID+"-Span");
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MathJax.Extension.MathEvents.Hover.Hover(jax,span);
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}
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return MathJax.Extension.MathEvents.Event.False(event);
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},
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//
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// Set/Clear the window status message
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//
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HTMLsetStatus: function (event) {
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// FIXME: Do something better with non-token elements
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this.messageID = MathJax.Message.Set
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((this.data[1] && this.data[1].isToken) ?
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this.data[1].data.join("") : this.data[1].toString());
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},
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HTMLclearStatus: function (event) {
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if (this.messageID) {MathJax.Message.Clear(this.messageID,0)}
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delete this.messageID;
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},
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//
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// Handle tooltips
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//
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HTMLtooltipOver: function (event) {
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if (!event) {event = window.event}
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if (clear) {clearTimeout(clear); clear = null}
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if (hover) {clearTimeout(hover)}
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var x = event.pageX; var y = event.pageY;
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if (x == null) {
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x = event.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
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y = event.clientY + document.body.scrollTop + document.documentElement.scrollTop;
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}
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var callback = MathJax.Callback(["HTMLtooltipPost",this,x+CONFIG.offsetX,y+CONFIG.offsetY])
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hover = setTimeout(callback,CONFIG.delayPost);
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},
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HTMLtooltipOut: function (event) {
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if (hover) {clearTimeout(hover); hover = null}
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if (clear) {clearTimeout(clear)}
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var callback = MathJax.Callback(["HTMLtooltipClear",this,80]);
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clear = setTimeout(callback,CONFIG.delayClear);
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},
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HTMLtooltipPost: function (x,y) {
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hover = null; if (clear) {clearTimeout(clear); clear = null}
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var tip = this.HTMLtooltip;
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tip.style.display = "block"; tip.style.opacity = "";
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tip.style.filter = HTMLCSS.config.styles["#MathJax_Tooltip"].filter;
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if (this === currentTip) return;
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tip.style.left = x+"px"; tip.style.top = y+"px";
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tip.innerHTML = '<span class="MathJax"><nobr></nobr></span>';
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//
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// get em sizes (taken from HTMLCSS.preTranslate)
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//
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var emex = tip.insertBefore(HTMLCSS.EmExSpan.cloneNode(true),tip.firstChild);
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var ex = emex.firstChild.offsetHeight/60,
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em = emex.lastChild.firstChild.offsetHeight/60;
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HTMLCSS.em = HTMLCSS.outerEm = MML.mbase.prototype.em = em;
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var scale = Math.floor(Math.max(HTMLCSS.config.minScaleAdjust/100,(ex/HTMLCSS.TeX.x_height)/em) * HTMLCSS.config.scale);
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tip.firstChild.style.fontSize = scale+"%";
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emex.parentNode.removeChild(emex);
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var stack = HTMLCSS.createStack(tip.firstChild.firstChild);
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var box = HTMLCSS.createBox(stack);
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try {HTMLCSS.Measured(this.data[1].toHTML(box),box)} catch(err) {
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if (!err.restart) {throw err}
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tip.style.display = "none";
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MathJax.Callback.After(["HTMLtooltipPost",this,x,y],err.restart);
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return;
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}
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HTMLCSS.placeBox(box,0,0);
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HTMLCSS.createRule(tip.firstChild.firstChild,box.bbox.h,box.bbox.d,0);
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currentTip = this;
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},
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HTMLtooltipClear: function (n) {
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var tip = this.HTMLtooltip;
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if (n <= 0) {
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tip.style.display = "none";
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tip.style.opacity = tip.style.filter = "";
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clear = null;
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} else {
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tip.style.opacity = n/100;
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tip.style.filter = "alpha(opacity="+n+")";
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clear = setTimeout(MathJax.Callback(["HTMLtooltipClear",this,n-20]),50);
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}
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}
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});
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//
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// Do browser-specific setup
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//
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MathJax.Hub.Browser.Select({
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MSIE: function (browser) {
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HTMLCSS.msieHitBoxBug = true;
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}
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});
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MathJax.Hub.Startup.signal.Post("HTML-CSS maction Ready");
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MathJax.Ajax.loadComplete(HTMLCSS.autoloadDir+"/maction.js");
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});
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