[3] | 1 | // S5 v1.1 slides.js -- released into the Public Domain |
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| 2 | // Modified for Docutils (http://docutils.sf.net) by David Goodger |
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| 3 | // |
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| 4 | // Please see http://www.meyerweb.com/eric/tools/s5/credits.html for |
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| 5 | // information about all the wonderful and talented contributors to this code! |
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| 6 | |
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| 7 | var undef; |
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| 8 | var slideCSS = ''; |
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| 9 | var snum = 0; |
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| 10 | var smax = 1; |
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| 11 | var slideIDs = new Array(); |
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| 12 | var incpos = 0; |
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| 13 | var number = undef; |
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| 14 | var s5mode = true; |
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| 15 | var defaultView = 'slideshow'; |
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| 16 | var controlVis = 'visible'; |
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| 17 | |
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| 18 | var isIE = navigator.appName == 'Microsoft Internet Explorer' ? 1 : 0; |
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| 19 | var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0; |
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| 20 | var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0; |
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| 21 | |
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| 22 | function hasClass(object, className) { |
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| 23 | if (!object.className) return false; |
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| 24 | return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1); |
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| 25 | } |
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| 26 | |
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| 27 | function hasValue(object, value) { |
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| 28 | if (!object) return false; |
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| 29 | return (object.search('(^|\\s)' + value + '(\\s|$)') != -1); |
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| 30 | } |
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| 31 | |
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| 32 | function removeClass(object,className) { |
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| 33 | if (!object) return; |
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| 34 | object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2); |
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| 35 | } |
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| 36 | |
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| 37 | function addClass(object,className) { |
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| 38 | if (!object || hasClass(object, className)) return; |
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| 39 | if (object.className) { |
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| 40 | object.className += ' '+className; |
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| 41 | } else { |
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| 42 | object.className = className; |
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| 43 | } |
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| 44 | } |
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| 45 | |
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| 46 | function GetElementsWithClassName(elementName,className) { |
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| 47 | var allElements = document.getElementsByTagName(elementName); |
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| 48 | var elemColl = new Array(); |
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| 49 | for (var i = 0; i< allElements.length; i++) { |
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| 50 | if (hasClass(allElements[i], className)) { |
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| 51 | elemColl[elemColl.length] = allElements[i]; |
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| 52 | } |
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| 53 | } |
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| 54 | return elemColl; |
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| 55 | } |
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| 56 | |
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| 57 | function isParentOrSelf(element, id) { |
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| 58 | if (element == null || element.nodeName=='BODY') return false; |
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| 59 | else if (element.id == id) return true; |
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| 60 | else return isParentOrSelf(element.parentNode, id); |
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| 61 | } |
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| 62 | |
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| 63 | function nodeValue(node) { |
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| 64 | var result = ""; |
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| 65 | if (node.nodeType == 1) { |
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| 66 | var children = node.childNodes; |
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| 67 | for (var i = 0; i < children.length; ++i) { |
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| 68 | result += nodeValue(children[i]); |
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| 69 | } |
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| 70 | } |
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| 71 | else if (node.nodeType == 3) { |
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| 72 | result = node.nodeValue; |
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| 73 | } |
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| 74 | return(result); |
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| 75 | } |
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| 76 | |
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| 77 | function slideLabel() { |
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| 78 | var slideColl = GetElementsWithClassName('*','slide'); |
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| 79 | var list = document.getElementById('jumplist'); |
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| 80 | smax = slideColl.length; |
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| 81 | for (var n = 0; n < smax; n++) { |
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| 82 | var obj = slideColl[n]; |
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| 83 | |
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| 84 | var did = 'slide' + n.toString(); |
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| 85 | if (obj.getAttribute('id')) { |
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| 86 | slideIDs[n] = obj.getAttribute('id'); |
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| 87 | } |
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| 88 | else { |
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| 89 | obj.setAttribute('id',did); |
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| 90 | slideIDs[n] = did; |
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| 91 | } |
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| 92 | if (isOp) continue; |
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| 93 | |
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| 94 | var otext = ''; |
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| 95 | var menu = obj.firstChild; |
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| 96 | if (!menu) continue; // to cope with empty slides |
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| 97 | while (menu && menu.nodeType == 3) { |
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| 98 | menu = menu.nextSibling; |
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| 99 | } |
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| 100 | if (!menu) continue; // to cope with slides with only text nodes |
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| 101 | |
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| 102 | var menunodes = menu.childNodes; |
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| 103 | for (var o = 0; o < menunodes.length; o++) { |
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| 104 | otext += nodeValue(menunodes[o]); |
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| 105 | } |
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| 106 | list.options[list.length] = new Option(n + ' : ' + otext, n); |
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| 107 | } |
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| 108 | } |
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| 109 | |
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| 110 | function currentSlide() { |
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| 111 | var cs; |
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| 112 | var footer_nodes; |
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| 113 | var vis = 'visible'; |
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| 114 | if (document.getElementById) { |
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| 115 | cs = document.getElementById('currentSlide'); |
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| 116 | footer_nodes = document.getElementById('footer').childNodes; |
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| 117 | } else { |
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| 118 | cs = document.currentSlide; |
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| 119 | footer = document.footer.childNodes; |
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| 120 | } |
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| 121 | cs.innerHTML = '<span id="csHere">' + snum + '<\/span> ' + |
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| 122 | '<span id="csSep">\/<\/span> ' + |
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| 123 | '<span id="csTotal">' + (smax-1) + '<\/span>'; |
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| 124 | if (snum == 0) { |
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| 125 | vis = 'hidden'; |
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| 126 | } |
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| 127 | cs.style.visibility = vis; |
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| 128 | for (var i = 0; i < footer_nodes.length; i++) { |
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| 129 | if (footer_nodes[i].nodeType == 1) { |
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| 130 | footer_nodes[i].style.visibility = vis; |
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| 131 | } |
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| 132 | } |
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| 133 | } |
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| 134 | |
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| 135 | function go(step) { |
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| 136 | if (document.getElementById('slideProj').disabled || step == 0) return; |
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| 137 | var jl = document.getElementById('jumplist'); |
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| 138 | var cid = slideIDs[snum]; |
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| 139 | var ce = document.getElementById(cid); |
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| 140 | if (incrementals[snum].length > 0) { |
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| 141 | for (var i = 0; i < incrementals[snum].length; i++) { |
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| 142 | removeClass(incrementals[snum][i], 'current'); |
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| 143 | removeClass(incrementals[snum][i], 'incremental'); |
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| 144 | } |
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| 145 | } |
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| 146 | if (step != 'j') { |
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| 147 | snum += step; |
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| 148 | lmax = smax - 1; |
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| 149 | if (snum > lmax) snum = lmax; |
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| 150 | if (snum < 0) snum = 0; |
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| 151 | } else |
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| 152 | snum = parseInt(jl.value); |
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| 153 | var nid = slideIDs[snum]; |
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| 154 | var ne = document.getElementById(nid); |
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| 155 | if (!ne) { |
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| 156 | ne = document.getElementById(slideIDs[0]); |
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| 157 | snum = 0; |
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| 158 | } |
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| 159 | if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;} |
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| 160 | if (incrementals[snum].length > 0 && incpos == 0) { |
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| 161 | for (var i = 0; i < incrementals[snum].length; i++) { |
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| 162 | if (hasClass(incrementals[snum][i], 'current')) |
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| 163 | incpos = i + 1; |
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| 164 | else |
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| 165 | addClass(incrementals[snum][i], 'incremental'); |
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| 166 | } |
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| 167 | } |
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| 168 | if (incrementals[snum].length > 0 && incpos > 0) |
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| 169 | addClass(incrementals[snum][incpos - 1], 'current'); |
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| 170 | ce.style.visibility = 'hidden'; |
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| 171 | ne.style.visibility = 'visible'; |
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| 172 | jl.selectedIndex = snum; |
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| 173 | currentSlide(); |
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| 174 | number = 0; |
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| 175 | } |
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| 176 | |
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| 177 | function goTo(target) { |
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| 178 | if (target >= smax || target == snum) return; |
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| 179 | go(target - snum); |
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| 180 | } |
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| 181 | |
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| 182 | function subgo(step) { |
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| 183 | if (step > 0) { |
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| 184 | removeClass(incrementals[snum][incpos - 1],'current'); |
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| 185 | removeClass(incrementals[snum][incpos], 'incremental'); |
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| 186 | addClass(incrementals[snum][incpos],'current'); |
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| 187 | incpos++; |
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| 188 | } else { |
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| 189 | incpos--; |
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| 190 | removeClass(incrementals[snum][incpos],'current'); |
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| 191 | addClass(incrementals[snum][incpos], 'incremental'); |
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| 192 | addClass(incrementals[snum][incpos - 1],'current'); |
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| 193 | } |
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| 194 | } |
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| 195 | |
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| 196 | function toggle() { |
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| 197 | var slideColl = GetElementsWithClassName('*','slide'); |
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| 198 | var slides = document.getElementById('slideProj'); |
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| 199 | var outline = document.getElementById('outlineStyle'); |
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| 200 | if (!slides.disabled) { |
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| 201 | slides.disabled = true; |
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| 202 | outline.disabled = false; |
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| 203 | s5mode = false; |
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| 204 | fontSize('1em'); |
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| 205 | for (var n = 0; n < smax; n++) { |
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| 206 | var slide = slideColl[n]; |
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| 207 | slide.style.visibility = 'visible'; |
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| 208 | } |
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| 209 | } else { |
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| 210 | slides.disabled = false; |
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| 211 | outline.disabled = true; |
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| 212 | s5mode = true; |
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| 213 | fontScale(); |
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| 214 | for (var n = 0; n < smax; n++) { |
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| 215 | var slide = slideColl[n]; |
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| 216 | slide.style.visibility = 'hidden'; |
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| 217 | } |
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| 218 | slideColl[snum].style.visibility = 'visible'; |
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| 219 | } |
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| 220 | } |
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| 221 | |
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| 222 | function showHide(action) { |
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| 223 | var obj = GetElementsWithClassName('*','hideme')[0]; |
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| 224 | switch (action) { |
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| 225 | case 's': obj.style.visibility = 'visible'; break; |
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| 226 | case 'h': obj.style.visibility = 'hidden'; break; |
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| 227 | case 'k': |
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| 228 | if (obj.style.visibility != 'visible') { |
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| 229 | obj.style.visibility = 'visible'; |
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| 230 | } else { |
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| 231 | obj.style.visibility = 'hidden'; |
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| 232 | } |
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| 233 | break; |
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| 234 | } |
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| 235 | } |
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| 236 | |
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| 237 | // 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/) |
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| 238 | function keys(key) { |
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| 239 | if (!key) { |
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| 240 | key = event; |
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| 241 | key.which = key.keyCode; |
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| 242 | } |
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| 243 | if (key.which == 84) { |
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| 244 | toggle(); |
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| 245 | return; |
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| 246 | } |
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| 247 | if (s5mode) { |
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| 248 | switch (key.which) { |
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| 249 | case 10: // return |
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| 250 | case 13: // enter |
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| 251 | if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return; |
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| 252 | if (key.target && isParentOrSelf(key.target, 'controls')) return; |
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| 253 | if(number != undef) { |
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| 254 | goTo(number); |
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| 255 | break; |
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| 256 | } |
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| 257 | case 32: // spacebar |
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| 258 | case 34: // page down |
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| 259 | case 39: // rightkey |
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| 260 | case 40: // downkey |
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| 261 | if(number != undef) { |
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| 262 | go(number); |
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| 263 | } else if (!incrementals[snum] || incpos >= incrementals[snum].length) { |
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| 264 | go(1); |
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| 265 | } else { |
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| 266 | subgo(1); |
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| 267 | } |
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| 268 | break; |
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| 269 | case 33: // page up |
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| 270 | case 37: // leftkey |
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| 271 | case 38: // upkey |
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| 272 | if(number != undef) { |
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| 273 | go(-1 * number); |
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| 274 | } else if (!incrementals[snum] || incpos <= 0) { |
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| 275 | go(-1); |
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| 276 | } else { |
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| 277 | subgo(-1); |
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| 278 | } |
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| 279 | break; |
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| 280 | case 36: // home |
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| 281 | goTo(0); |
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| 282 | break; |
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| 283 | case 35: // end |
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| 284 | goTo(smax-1); |
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| 285 | break; |
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| 286 | case 67: // c |
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| 287 | showHide('k'); |
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| 288 | break; |
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| 289 | } |
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| 290 | if (key.which < 48 || key.which > 57) { |
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| 291 | number = undef; |
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| 292 | } else { |
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| 293 | if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return; |
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| 294 | if (key.target && isParentOrSelf(key.target, 'controls')) return; |
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| 295 | number = (((number != undef) ? number : 0) * 10) + (key.which - 48); |
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| 296 | } |
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| 297 | } |
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| 298 | return false; |
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| 299 | } |
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| 300 | |
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| 301 | function clicker(e) { |
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| 302 | number = undef; |
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| 303 | var target; |
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| 304 | if (window.event) { |
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| 305 | target = window.event.srcElement; |
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| 306 | e = window.event; |
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| 307 | } else target = e.target; |
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| 308 | if (target.href != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target, 'object')) return true; |
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| 309 | if (!e.which || e.which == 1) { |
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| 310 | if (!incrementals[snum] || incpos >= incrementals[snum].length) { |
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| 311 | go(1); |
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| 312 | } else { |
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| 313 | subgo(1); |
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| 314 | } |
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| 315 | } |
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| 316 | } |
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| 317 | |
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| 318 | function findSlide(hash) { |
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| 319 | var target = document.getElementById(hash); |
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| 320 | if (target) { |
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| 321 | for (var i = 0; i < slideIDs.length; i++) { |
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| 322 | if (target.id == slideIDs[i]) return i; |
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| 323 | } |
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| 324 | } |
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| 325 | return null; |
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| 326 | } |
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| 327 | |
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| 328 | function slideJump() { |
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| 329 | if (window.location.hash == null || window.location.hash == '') { |
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| 330 | currentSlide(); |
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| 331 | return; |
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| 332 | } |
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| 333 | if (window.location.hash == null) return; |
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| 334 | var dest = null; |
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| 335 | dest = findSlide(window.location.hash.slice(1)); |
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| 336 | if (dest == null) { |
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| 337 | dest = 0; |
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| 338 | } |
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| 339 | go(dest - snum); |
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| 340 | } |
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| 341 | |
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| 342 | function fixLinks() { |
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| 343 | var thisUri = window.location.href; |
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| 344 | thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length); |
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| 345 | var aelements = document.getElementsByTagName('A'); |
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| 346 | for (var i = 0; i < aelements.length; i++) { |
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| 347 | var a = aelements[i].href; |
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| 348 | var slideID = a.match('\#.+'); |
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| 349 | if ((slideID) && (slideID[0].slice(0,1) == '#')) { |
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| 350 | var dest = findSlide(slideID[0].slice(1)); |
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| 351 | if (dest != null) { |
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| 352 | if (aelements[i].addEventListener) { |
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| 353 | aelements[i].addEventListener("click", new Function("e", |
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| 354 | "if (document.getElementById('slideProj').disabled) return;" + |
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| 355 | "go("+dest+" - snum); " + |
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| 356 | "if (e.preventDefault) e.preventDefault();"), true); |
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| 357 | } else if (aelements[i].attachEvent) { |
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| 358 | aelements[i].attachEvent("onclick", new Function("", |
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| 359 | "if (document.getElementById('slideProj').disabled) return;" + |
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| 360 | "go("+dest+" - snum); " + |
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| 361 | "event.returnValue = false;")); |
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| 362 | } |
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| 363 | } |
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| 364 | } |
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| 365 | } |
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| 366 | } |
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| 367 | |
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| 368 | function externalLinks() { |
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| 369 | if (!document.getElementsByTagName) return; |
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| 370 | var anchors = document.getElementsByTagName('a'); |
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| 371 | for (var i=0; i<anchors.length; i++) { |
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| 372 | var anchor = anchors[i]; |
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| 373 | if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) { |
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| 374 | anchor.target = '_blank'; |
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| 375 | addClass(anchor,'external'); |
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| 376 | } |
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| 377 | } |
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| 378 | } |
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| 379 | |
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| 380 | function createControls() { |
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| 381 | var controlsDiv = document.getElementById("controls"); |
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| 382 | if (!controlsDiv) return; |
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| 383 | var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"'; |
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| 384 | var hideDiv, hideList = ''; |
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| 385 | if (controlVis == 'hidden') { |
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| 386 | hideDiv = hider; |
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| 387 | } else { |
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| 388 | hideList = hider; |
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| 389 | } |
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| 390 | controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' + |
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| 391 | '<div id="navLinks">' + |
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| 392 | '<a accesskey="t" id="toggle" href="javascript:toggle();">Ø<\/a>' + |
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| 393 | '<a accesskey="z" id="prev" href="javascript:go(-1);">«<\/a>' + |
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| 394 | '<a accesskey="x" id="next" href="javascript:go(1);">»<\/a>' + |
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| 395 | '<div id="navList"' + hideList + '><select id="jumplist" onchange="go(\'j\');"><\/select><\/div>' + |
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| 396 | '<\/div><\/form>'; |
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| 397 | if (controlVis == 'hidden') { |
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| 398 | var hidden = document.getElementById('navLinks'); |
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| 399 | } else { |
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| 400 | var hidden = document.getElementById('jumplist'); |
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| 401 | } |
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| 402 | addClass(hidden,'hideme'); |
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| 403 | } |
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| 404 | |
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| 405 | function fontScale() { // causes layout problems in FireFox that get fixed if browser's Reload is used; same may be true of other Gecko-based browsers |
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| 406 | if (!s5mode) return false; |
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| 407 | var vScale = 22; // both yield 32 (after rounding) at 1024x768 |
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| 408 | var hScale = 32; // perhaps should auto-calculate based on theme's declared value? |
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| 409 | if (window.innerHeight) { |
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| 410 | var vSize = window.innerHeight; |
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| 411 | var hSize = window.innerWidth; |
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| 412 | } else if (document.documentElement.clientHeight) { |
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| 413 | var vSize = document.documentElement.clientHeight; |
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| 414 | var hSize = document.documentElement.clientWidth; |
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| 415 | } else if (document.body.clientHeight) { |
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| 416 | var vSize = document.body.clientHeight; |
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| 417 | var hSize = document.body.clientWidth; |
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| 418 | } else { |
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| 419 | var vSize = 700; // assuming 1024x768, minus chrome and such |
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| 420 | var hSize = 1024; // these do not account for kiosk mode or Opera Show |
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| 421 | } |
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| 422 | var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale)); |
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| 423 | fontSize(newSize + 'px'); |
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| 424 | if (isGe) { // hack to counter incremental reflow bugs |
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| 425 | var obj = document.getElementsByTagName('body')[0]; |
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| 426 | obj.style.display = 'none'; |
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| 427 | obj.style.display = 'block'; |
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| 428 | } |
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| 429 | } |
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| 430 | |
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| 431 | function fontSize(value) { |
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| 432 | if (!(s5ss = document.getElementById('s5ss'))) { |
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| 433 | if (!isIE) { |
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| 434 | document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style')); |
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| 435 | s5ss.setAttribute('media','screen, projection'); |
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| 436 | s5ss.setAttribute('id','s5ss'); |
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| 437 | } else { |
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| 438 | document.createStyleSheet(); |
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| 439 | document.s5ss = document.styleSheets[document.styleSheets.length - 1]; |
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| 440 | } |
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| 441 | } |
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| 442 | if (!isIE) { |
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| 443 | while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild); |
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| 444 | s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}')); |
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| 445 | } else { |
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| 446 | document.s5ss.addRule('body','font-size: ' + value + ' !important;'); |
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| 447 | } |
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| 448 | } |
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| 449 | |
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| 450 | function notOperaFix() { |
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| 451 | slideCSS = document.getElementById('slideProj').href; |
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| 452 | var slides = document.getElementById('slideProj'); |
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| 453 | var outline = document.getElementById('outlineStyle'); |
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| 454 | slides.setAttribute('media','screen'); |
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| 455 | outline.disabled = true; |
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| 456 | if (isGe) { |
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| 457 | slides.setAttribute('href','null'); // Gecko fix |
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| 458 | slides.setAttribute('href',slideCSS); // Gecko fix |
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| 459 | } |
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| 460 | if (isIE && document.styleSheets && document.styleSheets[0]) { |
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| 461 | document.styleSheets[0].addRule('img', 'behavior: url(ui/default/iepngfix.htc)'); |
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| 462 | document.styleSheets[0].addRule('div', 'behavior: url(ui/default/iepngfix.htc)'); |
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| 463 | document.styleSheets[0].addRule('.slide', 'behavior: url(ui/default/iepngfix.htc)'); |
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| 464 | } |
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| 465 | } |
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| 466 | |
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| 467 | function getIncrementals(obj) { |
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| 468 | var incrementals = new Array(); |
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| 469 | if (!obj) |
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| 470 | return incrementals; |
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| 471 | var children = obj.childNodes; |
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| 472 | for (var i = 0; i < children.length; i++) { |
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| 473 | var child = children[i]; |
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| 474 | if (hasClass(child, 'incremental')) { |
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| 475 | if (child.nodeName == 'OL' || child.nodeName == 'UL') { |
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| 476 | removeClass(child, 'incremental'); |
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| 477 | for (var j = 0; j < child.childNodes.length; j++) { |
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| 478 | if (child.childNodes[j].nodeType == 1) { |
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| 479 | addClass(child.childNodes[j], 'incremental'); |
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| 480 | } |
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| 481 | } |
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| 482 | } else { |
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| 483 | incrementals[incrementals.length] = child; |
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| 484 | removeClass(child,'incremental'); |
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| 485 | } |
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| 486 | } |
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| 487 | if (hasClass(child, 'show-first')) { |
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| 488 | if (child.nodeName == 'OL' || child.nodeName == 'UL') { |
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| 489 | removeClass(child, 'show-first'); |
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| 490 | if (child.childNodes[isGe].nodeType == 1) { |
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| 491 | removeClass(child.childNodes[isGe], 'incremental'); |
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| 492 | } |
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| 493 | } else { |
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| 494 | incrementals[incrementals.length] = child; |
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| 495 | } |
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| 496 | } |
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| 497 | incrementals = incrementals.concat(getIncrementals(child)); |
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| 498 | } |
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| 499 | return incrementals; |
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| 500 | } |
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| 501 | |
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| 502 | function createIncrementals() { |
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| 503 | var incrementals = new Array(); |
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| 504 | for (var i = 0; i < smax; i++) { |
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| 505 | incrementals[i] = getIncrementals(document.getElementById(slideIDs[i])); |
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| 506 | } |
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| 507 | return incrementals; |
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| 508 | } |
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| 509 | |
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| 510 | function defaultCheck() { |
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| 511 | var allMetas = document.getElementsByTagName('meta'); |
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| 512 | for (var i = 0; i< allMetas.length; i++) { |
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| 513 | if (allMetas[i].name == 'defaultView') { |
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| 514 | defaultView = allMetas[i].content; |
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| 515 | } |
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| 516 | if (allMetas[i].name == 'controlVis') { |
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| 517 | controlVis = allMetas[i].content; |
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| 518 | } |
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| 519 | } |
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| 520 | } |
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| 521 | |
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| 522 | // Key trap fix, new function body for trap() |
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| 523 | function trap(e) { |
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| 524 | if (!e) { |
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| 525 | e = event; |
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| 526 | e.which = e.keyCode; |
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| 527 | } |
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| 528 | try { |
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| 529 | modifierKey = e.ctrlKey || e.altKey || e.metaKey; |
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| 530 | } |
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| 531 | catch(e) { |
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| 532 | modifierKey = false; |
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| 533 | } |
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| 534 | return modifierKey || e.which == 0; |
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| 535 | } |
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| 536 | |
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| 537 | function startup() { |
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| 538 | defaultCheck(); |
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| 539 | if (!isOp) createControls(); |
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| 540 | slideLabel(); |
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| 541 | fixLinks(); |
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| 542 | externalLinks(); |
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| 543 | fontScale(); |
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| 544 | if (!isOp) { |
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| 545 | notOperaFix(); |
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| 546 | incrementals = createIncrementals(); |
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| 547 | slideJump(); |
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| 548 | if (defaultView == 'outline') { |
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| 549 | toggle(); |
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| 550 | } |
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| 551 | document.onkeyup = keys; |
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| 552 | document.onkeypress = trap; |
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| 553 | document.onclick = clicker; |
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| 554 | } |
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| 555 | } |
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| 556 | |
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| 557 | window.onload = startup; |
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| 558 | window.onresize = function(){setTimeout('fontScale()', 50);} |
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