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372
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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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|
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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 }
|
|
|
482 } else {
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|
|
483 incrementals[incrementals.length] = child;
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|
|
484 removeClass(child,'incremental');
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|
|
485 }
|
|
|
486 }
|
|
|
487 if (hasClass(child, 'show-first')) {
|
|
|
488 if (child.nodeName == 'OL' || child.nodeName == 'UL') {
|
|
|
489 removeClass(child, 'show-first');
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|
|
490 if (child.childNodes[isGe].nodeType == 1) {
|
|
|
491 removeClass(child.childNodes[isGe], 'incremental');
|
|
|
492 }
|
|
|
493 } else {
|
|
|
494 incrementals[incrementals.length] = child;
|
|
|
495 }
|
|
|
496 }
|
|
|
497 incrementals = incrementals.concat(getIncrementals(child));
|
|
|
498 }
|
|
|
499 return incrementals;
|
|
|
500 }
|
|
|
501
|
|
|
502 function createIncrementals() {
|
|
|
503 var incrementals = new Array();
|
|
|
504 for (var i = 0; i < smax; i++) {
|
|
|
505 incrementals[i] = getIncrementals(document.getElementById(slideIDs[i]));
|
|
|
506 }
|
|
|
507 return incrementals;
|
|
|
508 }
|
|
|
509
|
|
|
510 function defaultCheck() {
|
|
|
511 var allMetas = document.getElementsByTagName('meta');
|
|
|
512 for (var i = 0; i< allMetas.length; i++) {
|
|
|
513 if (allMetas[i].name == 'defaultView') {
|
|
|
514 defaultView = allMetas[i].content;
|
|
|
515 }
|
|
|
516 if (allMetas[i].name == 'controlVis') {
|
|
|
517 controlVis = allMetas[i].content;
|
|
|
518 }
|
|
|
519 }
|
|
|
520 }
|
|
|
521
|
|
|
522 // Key trap fix, new function body for trap()
|
|
|
523 function trap(e) {
|
|
|
524 if (!e) {
|
|
|
525 e = event;
|
|
|
526 e.which = e.keyCode;
|
|
|
527 }
|
|
|
528 try {
|
|
|
529 modifierKey = e.ctrlKey || e.altKey || e.metaKey;
|
|
|
530 }
|
|
|
531 catch(e) {
|
|
|
532 modifierKey = false;
|
|
|
533 }
|
|
|
534 return modifierKey || e.which == 0;
|
|
|
535 }
|
|
|
536
|
|
|
537 function startup() {
|
|
|
538 defaultCheck();
|
|
|
539 if (!isOp) createControls();
|
|
|
540 slideLabel();
|
|
|
541 fixLinks();
|
|
|
542 externalLinks();
|
|
|
543 fontScale();
|
|
|
544 if (!isOp) {
|
|
|
545 notOperaFix();
|
|
|
546 incrementals = createIncrementals();
|
|
|
547 slideJump();
|
|
|
548 if (defaultView == 'outline') {
|
|
|
549 toggle();
|
|
|
550 }
|
|
|
551 document.onkeyup = keys;
|
|
|
552 document.onkeypress = trap;
|
|
|
553 document.onclick = clicker;
|
|
|
554 }
|
|
|
555 }
|
|
|
556
|
|
|
557 window.onload = startup;
|
|
|
558 window.onresize = function(){setTimeout('fontScale()', 50);}
|
