| 1 | /** | 
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| 2 | * box-sizing Polyfill | 
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| 3 | * | 
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| 4 | * A polyfill for box-sizing: border-box for IE6 & IE7. | 
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| 5 | * | 
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| 6 | * JScript | 
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| 7 | * | 
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| 8 | * This program is free software: you can redistribute it and/or modify | 
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| 9 | * it under the terms of the GNU Lesser General Public License as published | 
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| 10 | * by the Free Software Foundation, either version 3 of the License, or | 
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| 11 | * (at your option) any later version. | 
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| 12 | * | 
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| 13 | * This program is distributed in the hope that it will be useful, | 
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 
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| 16 | * GNU Lesser General Public License for more details. | 
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| 17 | * | 
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| 18 | * See <http://www.gnu.org/licenses/lgpl-3.0.txt> | 
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| 19 | * | 
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| 20 | * @category  JScript | 
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| 21 | * @package   box-sizing-polyfill | 
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| 22 | * @author    Christian Schepp Schaefer <schaepp@gmx.de> <http://twitter.com/derSchepp> | 
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| 23 | * @copyright 2012 Christian Schepp Schaefer | 
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| 24 | * @license   http://www.gnu.org/copyleft/lesser.html The GNU LESSER GENERAL PUBLIC LICENSE, Version 3.0 | 
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| 25 | * @link      http://github.com/Schepp/box-sizing-polyfill | 
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| 26 | * | 
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| 27 | * PREFACE: | 
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| 28 | * | 
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| 29 | * This box-sizing polyfill is based on previous work done by Erik Arvidsson, | 
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| 30 | * which he published in 2002 on http://webfx.eae.net/dhtml/boxsizing/boxsizing.html. | 
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| 31 | * | 
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| 32 | * USAGE: | 
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| 33 | * | 
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| 34 | * Add the behavior/HTC after every `box-sizing: border-box;` that you assign: | 
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| 35 | * | 
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| 36 | * box-sizing: border-box; | 
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| 37 | * *behavior: url(/scripts/boxsizing.htc);` | 
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| 38 | * | 
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| 39 | * Prefix the `behavior` property with a star, like seen above, so it will only be seen by | 
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| 40 | * IE6 & IE7, not by IE8+ who already implement box-sizing. | 
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| 41 | * | 
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| 42 | * The URL to the HTC file must be relative to your HTML(!) document, not relative to your CSS. | 
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| 43 | * That's why I'd advise you to use absolute paths like in the example. | 
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| 44 | * | 
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| 45 | */ | 
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| 46 | <component lightWeight="true"> | 
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| 47 | <attach event="onpropertychange" onevent="checkPropertyChange()" /> | 
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| 48 | <attach event="ondetach" onevent="restore()" /> | 
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| 49 | <attach event="onresize" for="window" onevent="update()" /> | 
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| 50 | <script type="text/javascript"> | 
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| 51 | //<![CDATA[ | 
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| 52 |  | 
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| 53 | var viewportwidth = (typeof window.innerWidth != 'undefined' ? window.innerWidth : element.document.documentElement.clientWidth); | 
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| 54 |  | 
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| 55 | // Shortcut for the document object | 
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| 56 | var doc = element.document; | 
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| 57 |  | 
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| 58 | // Buffer for multiple resize events | 
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| 59 | var resizetimeout = null; | 
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| 60 |  | 
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| 61 | // Don't apply box-sizing to certain elements | 
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| 62 | var apply = false; | 
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| 63 | switch(element.nodeName){ | 
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| 64 | case '#comment': | 
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| 65 | case 'HTML': | 
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| 66 | case 'HEAD': | 
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| 67 | case 'TITLE': | 
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| 68 | case 'SCRIPT': | 
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| 69 | case 'STYLE': | 
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| 70 | case 'LINK': | 
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| 71 | case 'META': | 
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| 72 | break; | 
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| 73 |  | 
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| 74 | default: | 
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| 75 | apply = true; | 
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| 76 | break; | 
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| 77 | } | 
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| 78 |  | 
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| 79 | /* | 
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| 80 | * update gets called during resize events, then waits until there are no further resize events, and finally triggers a recalculation | 
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| 81 | */ | 
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| 82 | function update(){ | 
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| 83 | if(resizetimeout !== null){ | 
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| 84 | window.clearTimeout(resizetimeout); | 
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| 85 | } | 
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| 86 | resizetimeout = window.setTimeout(function(){ | 
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| 87 | try{ | 
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| 88 | restore(); | 
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| 89 | init(); | 
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| 90 | } | 
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| 91 | catch(e){} | 
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| 92 | resizetimeout = null; | 
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| 93 | },100); | 
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| 94 | } | 
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| 95 |  | 
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| 96 | /* | 
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| 97 | * restore gets called when the behavior is being detached (see event binding at the top), | 
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| 98 | * resets everything like it was before applying the behavior | 
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| 99 | */ | 
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| 100 | function restore(){ | 
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| 101 | if(apply){ | 
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| 102 | try{ | 
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| 103 | element.runtimeStyle.removeAttribute("width"); | 
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| 104 | element.runtimeStyle.removeAttribute("height"); | 
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| 105 | } | 
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| 106 | catch(e){} | 
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| 107 | } | 
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| 108 | } | 
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| 109 |  | 
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| 110 | /* | 
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| 111 | * init gets called once at the start and then never again, | 
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| 112 | * triggers box-sizing calculations and updates width and height | 
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| 113 | */ | 
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| 114 | function init(){ | 
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| 115 | if(apply){ | 
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| 116 | updateBorderBoxWidth(); | 
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| 117 | updateBorderBoxHeight(); | 
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| 118 | } | 
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| 119 | } | 
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| 120 |  | 
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| 121 | /* | 
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| 122 | * checkPropertyChange gets called as soon as an element property changes | 
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| 123 | * (see event binding at the top), it then checks if any property influencing its | 
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| 124 | * dimensions was changed and if yes recalculates width and height | 
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| 125 | */ | 
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| 126 | function checkPropertyChange(){ | 
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| 127 | if(apply){ | 
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| 128 | var pn = event.propertyName; | 
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| 129 | if(pn === "style.boxSizing" && element.style.boxSizing === ""){ | 
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| 130 | element.style.removeAttribute("boxSizing"); | 
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| 131 | element.runtimeStyle.removeAttribute("boxSizing"); | 
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| 132 | element.runtimeStyle.removeAttribute("width"); | 
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| 133 | element.runtimeStyle.removeAttribute("height"); | 
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| 134 | } | 
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| 135 | switch (pn){ | 
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| 136 | case "style.width": | 
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| 137 | case "style.minWidth": | 
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| 138 | case "style.maxWidth": | 
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| 139 | case "style.borderLeftWidth": | 
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| 140 | case "style.borderLeftStyle": | 
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| 141 | case "style.borderRightWidth": | 
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| 142 | case "style.borderRightStyle": | 
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| 143 | case "style.paddingLeft": | 
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| 144 | case "style.paddingRight": | 
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| 145 | updateBorderBoxWidth(); | 
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| 146 | break; | 
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| 147 |  | 
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| 148 | case "style.height": | 
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| 149 | case "style.minHeight": | 
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| 150 | case "style.maxHeight": | 
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| 151 | case "style.borderTopWidth": | 
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| 152 | case "style.borderTopStyle": | 
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| 153 | case "style.borderBottomWidth": | 
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| 154 | case "style.borderBottomStyle": | 
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| 155 | case "style.paddingTop": | 
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| 156 | case "style.paddingBottom": | 
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| 157 | updateBorderBoxHeight(); | 
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| 158 | break; | 
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| 159 |  | 
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| 160 | case "className": | 
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| 161 | case "style.boxSizing": | 
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| 162 | updateBorderBoxWidth(); | 
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| 163 | updateBorderBoxHeight(); | 
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| 164 | break; | 
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| 165 | } | 
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| 166 | } | 
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| 167 | } | 
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| 168 |  | 
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| 169 | /* | 
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| 170 | * Helper function, taken from Dean Edward's IE7 framework, | 
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| 171 | * added by Schepp on 12.06.2010. | 
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| 172 | * http://code.google.com/p/ie7-js/ | 
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| 173 | * | 
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| 174 | * Allows us to convert from relative to pixel-values. | 
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| 175 | */ | 
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| 176 | function getPixelValue(value){ | 
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| 177 | var PIXEL = /^\d+(px)?$/i; | 
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| 178 | if (PIXEL.test(value)) return parseInt(value); | 
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| 179 | var style = element.style.left; | 
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| 180 | var runtimeStyle = element.runtimeStyle.left; | 
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| 181 | element.runtimeStyle.left = element.currentStyle.left; | 
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| 182 | element.style.left = value || 0; | 
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| 183 | value = parseInt(element.style.pixelLeft); | 
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| 184 | element.style.left = style; | 
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| 185 | element.runtimeStyle.left = runtimeStyle; | 
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| 186 |  | 
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| 187 | return value; | 
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| 188 | } | 
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| 189 |  | 
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| 190 | function getPixelWidth(object, value){ | 
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| 191 | // For Pixel Values | 
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| 192 | var PIXEL = /^\d+(px)?$/i; | 
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| 193 | if (PIXEL.test(value)) return parseInt(value); | 
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| 194 |  | 
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| 195 | // For Percentage Values | 
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| 196 | var PERCENT = /^[\d\.]+%$/i; | 
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| 197 | if (PERCENT.test(value)){ | 
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| 198 | try{ | 
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| 199 | var parentPaddingLeft = getPixelWidth(object.parentElement,object.parentElement.currentStyle.paddingLeft); | 
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| 200 | var parentPaddingRight = getPixelWidth(object.parentElement,object.parentElement.currentStyle.paddingRight); | 
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| 201 | var parentBorderLeft = getPixelWidth(object.parentElement,object.parentElement.currentStyle.borderLeft); | 
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| 202 | var parentBorderRight = getPixelWidth(object.parentElement,object.parentElement.currentStyle.borderRight); | 
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| 203 |  | 
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| 204 | //var parentWidth = getPixelWidth(object.parentElement,(object.parentElement.currentStyle.width != "auto" ? object.parentElement.currentStyle.width : "100%")); | 
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| 205 | var parentWidth = object.parentElement.offsetWidth - parentPaddingLeft - parentPaddingRight - parentBorderLeft - parentBorderRight; | 
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| 206 | var value = (parseFloat(value) / 100) * parentWidth; | 
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| 207 | } | 
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| 208 | catch(e){ | 
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| 209 | var value = (parseFloat(value) / 100) * element.document.documentElement.clientWidth; | 
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| 210 | } | 
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| 211 | return parseInt(value); | 
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| 212 | } | 
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| 213 |  | 
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| 214 | // For EM Values | 
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| 215 | var style = object.style.left; | 
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| 216 | var runtimeStyle = object.runtimeStyle.left; | 
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| 217 | object.runtimeStyle.left = object.currentStyle.left; | 
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| 218 | object.style.left = value || 0; | 
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| 219 | value = parseInt(object.style.pixelLeft); | 
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| 220 | object.style.left = style; | 
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| 221 | object.runtimeStyle.left = runtimeStyle; | 
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| 222 |  | 
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| 223 | return value; | 
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| 224 | } | 
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| 225 |  | 
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| 226 | function getPixelHeight(object, value){ | 
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| 227 | // For Pixel Values | 
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| 228 | var PIXEL = /^\d+(px)?$/i; | 
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| 229 | if (PIXEL.test(value)) return parseInt(value); | 
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| 230 |  | 
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| 231 | // For Percentage Values | 
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| 232 | var PERCENT = /^[\d\.]+%$/i; | 
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| 233 | if (PERCENT.test(value)){ | 
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| 234 | try{ | 
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| 235 | if(object.parentElement.currentStyle.height != "auto"){ | 
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| 236 | switch(object.parentElement.nodeName){ | 
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| 237 | default: | 
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| 238 | if(object.parentElement.currentStyle.height !== "auto"){ | 
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| 239 | var parentPaddingTop = getPixelWidth(object.parentElement,object.parentElement.currentStyle.paddingTop); | 
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| 240 | var parentPaddingBottom = getPixelWidth(object.parentElement,object.parentElement.currentStyle.paddingBottom); | 
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| 241 | var parentBorderTop = getPixelWidth(object.parentElement,object.parentElement.currentStyle.borderTop); | 
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| 242 | var parentBorderBottom = getPixelWidth(object.parentElement,object.parentElement.currentStyle.borderBottom); | 
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| 243 |  | 
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| 244 | var parentHeight = object.parentElement.offsetHeight - parentPaddingTop - parentPaddingBottom - parentBorderTop - parentBorderBottom; | 
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| 245 | //var parentHeight = getPixelHeight(object.parentElement,object.parentElement.currentStyle.height); | 
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| 246 |  | 
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| 247 | value = (parseFloat(value) / 100) * parentHeight; | 
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| 248 | } | 
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| 249 | else { | 
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| 250 | value = "auto"; | 
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| 251 | } | 
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| 252 | break; | 
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| 253 |  | 
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| 254 | case 'HTML': | 
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| 255 | parentHeight = element.document.documentElement.clientHeight; | 
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| 256 | if(parentHeight !== "auto"){ | 
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| 257 | value = (parseFloat(value) / 100) * parentHeight; | 
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| 258 | } | 
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| 259 | else { | 
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| 260 | value = "auto"; | 
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| 261 | } | 
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| 262 | break; | 
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| 263 | } | 
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| 264 | if(value !== "auto") value = parseInt(value); | 
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| 265 | } | 
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| 266 | else { | 
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| 267 | value = "auto"; | 
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| 268 | } | 
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| 269 | } | 
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| 270 | catch(e){ | 
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| 271 | value = "auto"; | 
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| 272 | } | 
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| 273 | return value; | 
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| 274 | } | 
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| 275 |  | 
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| 276 | // For EM Values | 
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| 277 | var style = object.style.left; | 
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| 278 | var runtimeStyle = object.runtimeStyle.left; | 
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| 279 | object.runtimeStyle.left = object.currentStyle.left; | 
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| 280 | object.style.left = value || 0; | 
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| 281 | value = parseInt(object.style.pixelLeft); | 
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| 282 | object.style.left = style; | 
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| 283 | object.runtimeStyle.left = runtimeStyle; | 
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| 284 |  | 
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| 285 | return value; | 
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| 286 | } | 
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| 287 |  | 
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| 288 |  | 
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| 289 | /* | 
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| 290 | * getBorderWidth & friends | 
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| 291 | * Border width getters | 
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| 292 | */ | 
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| 293 | function getBorderWidth(sSide){ | 
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| 294 | if(element.currentStyle["border" + sSide + "Style"] == "none"){ | 
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| 295 | return 0; | 
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| 296 | } | 
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| 297 | var n = getPixelValue(element.currentStyle["border" + sSide + "Width"]); | 
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| 298 | return n || 0; | 
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| 299 | } | 
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| 300 | function getBorderLeftWidth() { return getBorderWidth("Left"); } | 
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| 301 | function getBorderRightWidth() { return getBorderWidth("Right"); } | 
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| 302 | function getBorderTopWidth() { return getBorderWidth("Top"); } | 
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| 303 | function getBorderBottomWidth() { return getBorderWidth("Bottom"); } | 
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| 304 |  | 
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| 305 |  | 
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| 306 | /* | 
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| 307 | * getPadding & friends | 
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| 308 | * Padding width getters | 
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| 309 | */ | 
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| 310 | function getPadding(sSide) { | 
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| 311 | var n = getPixelValue(element.currentStyle["padding" + sSide]); | 
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| 312 | return n || 0; | 
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| 313 | } | 
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| 314 | function getPaddingLeft() { return getPadding("Left"); } | 
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| 315 | function getPaddingRight() { return getPadding("Right"); } | 
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| 316 | function getPaddingTop() { return getPadding("Top"); } | 
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| 317 | function getPaddingBottom() { return getPadding("Bottom"); } | 
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| 318 |  | 
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| 319 |  | 
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| 320 |  | 
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| 321 | /* | 
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| 322 | * getBoxSizing | 
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| 323 | * Get the box-sizing value for the current element | 
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| 324 | */ | 
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| 325 | function getBoxSizing(){ | 
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| 326 | var s = element.style; | 
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| 327 | var cs = element.currentStyle | 
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| 328 | if(typeof s.boxSizing != "undefined" && s.boxSizing != ""){ | 
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| 329 | return s.boxSizing; | 
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| 330 | } | 
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| 331 | if(typeof s["box-sizing"] != "undefined" && s["box-sizing"] != ""){ | 
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| 332 | return s["box-sizing"]; | 
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| 333 | } | 
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| 334 | if(typeof cs.boxSizing != "undefined" && cs.boxSizing != ""){ | 
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| 335 | return cs.boxSizing; | 
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| 336 | } | 
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| 337 | if(typeof cs["box-sizing"] != "undefined" && cs["box-sizing"] != ""){ | 
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| 338 | return cs["box-sizing"]; | 
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| 339 | } | 
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| 340 | return getDocumentBoxSizing(); | 
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| 341 | } | 
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| 342 |  | 
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| 343 |  | 
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| 344 | /* | 
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| 345 | * getDocumentBoxSizing | 
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| 346 | * Get the default document box sizing (check for quirks mode) | 
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| 347 | */ | 
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| 348 | function getDocumentBoxSizing(){ | 
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| 349 | if(doc.compatMode === null || doc.compatMode === "BackCompat"){ | 
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| 350 | return "border-box"; | 
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| 351 | } | 
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| 352 | return "content-box" | 
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| 353 | } | 
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| 354 |  | 
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| 355 |  | 
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| 356 | /* | 
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| 357 | * setBorderBoxWidth & friends | 
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| 358 | * Width and height setters | 
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| 359 | */ | 
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| 360 | function setBorderBoxWidth(n){ | 
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| 361 | element.runtimeStyle.width = Math.max(0, n - getBorderLeftWidth() - | 
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| 362 | getPaddingLeft() - getPaddingRight() - getBorderRightWidth()) + "px"; | 
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| 363 | } | 
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| 364 | function setBorderBoxMinWidth(n){ | 
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| 365 | element.runtimeStyle.minWidth = Math.max(0, n - getBorderLeftWidth() - | 
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| 366 | getPaddingLeft() - getPaddingRight() - getBorderRightWidth()) + "px"; | 
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| 367 | } | 
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| 368 | function setBorderBoxMaxWidth(n){ | 
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| 369 | element.runtimeStyle.maxWidth = Math.max(0, n - getBorderLeftWidth() - | 
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| 370 | getPaddingLeft() - getPaddingRight() - getBorderRightWidth()) + "px"; | 
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| 371 | } | 
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| 372 | function setBorderBoxHeight(n){ | 
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| 373 | element.runtimeStyle.height = Math.max(0, n - getBorderTopWidth() - | 
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| 374 | getPaddingTop() - getPaddingBottom() - getBorderBottomWidth()) + "px"; | 
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| 375 | } | 
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| 376 | function setBorderBoxMinHeight(n){ | 
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| 377 | element.runtimeStyle.minHeight = Math.max(0, n - getBorderTopWidth() - | 
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| 378 | getPaddingTop() - getPaddingBottom() - getBorderBottomWidth()) + "px"; | 
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| 379 | } | 
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| 380 | function setBorderBoxMaxHeight(n){ | 
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| 381 | element.runtimeStyle.maxHeight = Math.max(0, n - getBorderTopWidth() - | 
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| 382 | getPaddingTop() - getPaddingBottom() - getBorderBottomWidth()) + "px"; | 
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| 383 | } | 
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| 384 | function setContentBoxWidth(n){ | 
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| 385 | element.runtimeStyle.width = Math.max(0, n + getBorderLeftWidth() + | 
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| 386 | getPaddingLeft() + getPaddingRight() + getBorderRightWidth()) + "px"; | 
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| 387 | } | 
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| 388 | function setContentBoxMinWidth(n){ | 
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| 389 | element.runtimeStyle.minWidth = Math.max(0, n + getBorderLeftWidth() + | 
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| 390 | getPaddingLeft() + getPaddingRight() + getBorderRightWidth()) + "px"; | 
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| 391 | } | 
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| 392 | function setContentBoxMaxWidth(n){ | 
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| 393 | element.runtimeStyle.maxWidth = Math.max(0, n + getBorderLeftWidth() + | 
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| 394 | getPaddingLeft() + getPaddingRight() + getBorderRightWidth()) + "px"; | 
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| 395 | } | 
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| 396 | function setContentBoxHeight(n){ | 
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| 397 | element.runtimeStyle.height = Math.max(0, n + getBorderTopWidth() + | 
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| 398 | getPaddingTop() + getPaddingBottom() + getBorderBottomWidth()) + "px"; | 
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| 399 | } | 
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| 400 | function setContentBoxMinHeight(n){ | 
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| 401 | element.runtimeStyle.minHeight = Math.max(0, n + getBorderTopWidth() + | 
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| 402 | getPaddingTop() + getPaddingBottom() + getBorderBottomWidth()) + "px"; | 
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| 403 | } | 
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| 404 | function setContentBoxMaxHeight(n){ | 
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| 405 | element.runtimeStyle.maxHeight = Math.max(0, n + getBorderTopWidth() + | 
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| 406 | getPaddingTop() + getPaddingBottom() + getBorderBottomWidth()) + "px"; | 
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| 407 | } | 
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| 408 |  | 
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| 409 |  | 
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| 410 | /* | 
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| 411 | * updateBorderBoxWidth & updateBorderBoxHeight | 
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| 412 | * | 
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| 413 | */ | 
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| 414 | function updateBorderBoxWidth() { | 
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| 415 | if(getDocumentBoxSizing() == getBoxSizing()){ | 
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| 416 | return; | 
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| 417 | } | 
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| 418 |  | 
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| 419 | var csw = element.currentStyle.width; | 
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| 420 | if(csw != "auto"){ | 
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| 421 | csw = getPixelWidth(element,csw); | 
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| 422 | if(getBoxSizing() == "border-box"){ | 
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| 423 | setBorderBoxWidth(parseInt(csw)); | 
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| 424 | } | 
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| 425 | else{ | 
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| 426 | setContentBoxWidth(parseInt(csw)); | 
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| 427 | } | 
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| 428 | } | 
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| 429 |  | 
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| 430 | csw = element.currentStyle.minWidth; | 
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| 431 | if(csw != "none"){ | 
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| 432 | csw = getPixelWidth(element,csw); | 
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| 433 | if(getBoxSizing() == "border-box"){ | 
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| 434 | setBorderBoxMinWidth(parseInt(csw)); | 
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| 435 | } | 
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| 436 | else{ | 
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| 437 | setContentBoxMinWidth(parseInt(csw)); | 
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| 438 | } | 
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| 439 | } | 
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| 440 |  | 
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| 441 | csw = element.currentStyle.maxWidth; | 
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| 442 | if(csw != "none"){ | 
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| 443 | csw = getPixelWidth(element,csw); | 
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| 444 | if(getBoxSizing() == "border-box"){ | 
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| 445 | setBorderBoxMaxWidth(parseInt(csw)); | 
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| 446 | } | 
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| 447 | else{ | 
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| 448 | setContentBoxMaxWidth(parseInt(csw)); | 
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| 449 | } | 
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| 450 | } | 
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| 451 | } | 
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| 452 |  | 
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| 453 | function updateBorderBoxHeight() { | 
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| 454 | if(getDocumentBoxSizing() == getBoxSizing()){ | 
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| 455 | return; | 
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| 456 | } | 
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| 457 |  | 
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| 458 | var csh = element.currentStyle.height; | 
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| 459 | if(csh != "auto"){ | 
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| 460 | csh = getPixelHeight(element,csh); | 
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| 461 | if(csh !== "auto"){ | 
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| 462 | if(getBoxSizing() == "border-box"){ | 
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| 463 | setBorderBoxHeight(parseInt(csh)); | 
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| 464 | } | 
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| 465 | else{ | 
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| 466 | setContentBoxHeight(parseInt(csh)); | 
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| 467 | } | 
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| 468 | } | 
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| 469 | } | 
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| 470 |  | 
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| 471 | csh = element.currentStyle.minHeight; | 
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| 472 | if(csh != "none"){ | 
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| 473 | csh = getPixelHeight(element,csh); | 
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| 474 | if(csh !== "none"){ | 
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| 475 | if(getBoxSizing() == "border-box"){ | 
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| 476 | setBorderBoxMinHeight(parseInt(csh)); | 
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| 477 | } | 
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| 478 | else{ | 
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| 479 | setContentBoxMinHeight(parseInt(csh)); | 
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| 480 | } | 
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| 481 | } | 
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| 482 | } | 
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| 483 |  | 
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| 484 | csh = element.currentStyle.maxHeight; | 
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| 485 | if(csh != "none"){ | 
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| 486 | csh = getPixelHeight(element,csh); | 
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| 487 | if(csh !== "none"){ | 
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| 488 | if(getBoxSizing() == "border-box"){ | 
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| 489 | setBorderBoxMaxHeight(parseInt(csh)); | 
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| 490 | } | 
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| 491 | else{ | 
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| 492 | setContentBoxMaxHeight(parseInt(csh)); | 
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| 493 | } | 
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| 494 | } | 
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| 495 | } | 
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| 496 | } | 
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| 497 |  | 
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| 498 |  | 
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| 499 | // Run the calculations | 
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| 500 | init(); | 
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| 501 |  | 
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| 502 | //]]> | 
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| 503 | </script> | 
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| 504 | </component> | 
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