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1 // S5 v1.1 slides.js -- released into the Public Domain
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2 //
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3 // Please see http://www.meyerweb.com/eric/tools/s5/credits.html for information
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4 // about all the wonderful and talented contributors to this code!
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5
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6 var undef;
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7 var slideCSS = '';
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8 var snum = 0;
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9 var smax = 1;
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10 var incpos = 0;
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11 var number = undef;
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12 var s5mode = true;
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13 var defaultView = 'slideshow';
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14 var controlVis = 'visible';
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15
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16 var isIE = navigator.appName == 'Microsoft Internet Explorer' && navigator.userAgent.indexOf('Opera') < 1 ? 1 : 0;
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17 var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0;
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18 var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0;
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19
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20 function hasClass(object, className) {
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21 if (!object.className) return false;
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22 return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1);
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23 }
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24
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25 function hasValue(object, value) {
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26 if (!object) return false;
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27 return (object.search('(^|\\s)' + value + '(\\s|$)') != -1);
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28 }
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29
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30 function removeClass(object,className) {
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31 if (!object) return;
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32 object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2);
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33 }
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34
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35 function addClass(object,className) {
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36 if (!object || hasClass(object, className)) return;
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37 if (object.className) {
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38 object.className += ' '+className;
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39 } else {
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40 object.className = className;
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41 }
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42 }
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43
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44 function GetElementsWithClassName(elementName,className) {
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45 var allElements = document.getElementsByTagName(elementName);
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46 var elemColl = new Array();
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47 for (var i = 0; i< allElements.length; i++) {
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48 if (hasClass(allElements[i], className)) {
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49 elemColl[elemColl.length] = allElements[i];
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50 }
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51 }
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52 return elemColl;
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53 }
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54
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55 function isParentOrSelf(element, id) {
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56 if (element == null || element.nodeName=='BODY') return false;
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57 else if (element.id == id) return true;
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58 else return isParentOrSelf(element.parentNode, id);
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59 }
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60
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61 function nodeValue(node) {
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62 var result = "";
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63 if (node.nodeType == 1) {
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64 var children = node.childNodes;
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65 for (var i = 0; i < children.length; ++i) {
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66 result += nodeValue(children[i]);
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67 }
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68 }
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69 else if (node.nodeType == 3) {
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70 result = node.nodeValue;
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71 }
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72 return(result);
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73 }
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74
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75 function slideLabel() {
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76 var slideColl = GetElementsWithClassName('*','slide');
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77 var list = document.getElementById('jumplist');
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78 smax = slideColl.length;
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79 for (var n = 0; n < smax; n++) {
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80 var obj = slideColl[n];
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81
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82 var did = 'slide' + n.toString();
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83 obj.setAttribute('id',did);
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84 if (isOp) continue;
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85
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86 var otext = '';
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87 var menu = obj.firstChild;
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88 if (!menu) continue; // to cope with empty slides
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89 while (menu && menu.nodeType == 3) {
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90 menu = menu.nextSibling;
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91 }
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92 if (!menu) continue; // to cope with slides with only text nodes
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93
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94 var menunodes = menu.childNodes;
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95 for (var o = 0; o < menunodes.length; o++) {
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96 otext += nodeValue(menunodes[o]);
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97 }
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98 list.options[list.length] = new Option(n + ' : ' + otext, n);
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99 }
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100 }
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101
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102 function currentSlide() {
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103 var cs;
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104 if (document.getElementById) {
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105 cs = document.getElementById('currentSlide');
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106 } else {
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107 cs = document.currentSlide;
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108 }
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109 cs.innerHTML = '<span id="csHere">' + snum + '<\/span> ' +
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110 '<span id="csSep">\/<\/span> ' +
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111 '<span id="csTotal">' + (smax-1) + '<\/span>';
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112 if (snum == 0) {
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113 cs.style.visibility = 'hidden';
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114 } else {
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115 cs.style.visibility = 'visible';
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116 }
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117 }
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118
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119 function go(step) {
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120 if (document.getElementById('slideProj').disabled || step == 0) return;
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121 var jl = document.getElementById('jumplist');
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122 var cid = 'slide' + snum;
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123 var ce = document.getElementById(cid);
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124 if (incrementals[snum].length > 0) {
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125 for (var i = 0; i < incrementals[snum].length; i++) {
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126 removeClass(incrementals[snum][i], 'current');
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127 removeClass(incrementals[snum][i], 'incremental');
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128 }
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129 }
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130 if (step != 'j') {
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131 snum += step;
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132 lmax = smax - 1;
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133 if (snum > lmax) snum = lmax;
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134 if (snum < 0) snum = 0;
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135 } else
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136 snum = parseInt(jl.value);
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137 var nid = 'slide' + snum;
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138 var ne = document.getElementById(nid);
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139 if (!ne) {
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140 ne = document.getElementById('slide0');
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141 snum = 0;
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142 }
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143 if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;}
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144 if (incrementals[snum].length > 0 && incpos == 0) {
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145 for (var i = 0; i < incrementals[snum].length; i++) {
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146 if (hasClass(incrementals[snum][i], 'current'))
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147 incpos = i + 1;
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148 else
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149 addClass(incrementals[snum][i], 'incremental');
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150 }
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151 }
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152 if (incrementals[snum].length > 0 && incpos > 0)
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153 addClass(incrementals[snum][incpos - 1], 'current');
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154 ce.style.visibility = 'hidden';
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155 ne.style.visibility = 'visible';
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156 jl.selectedIndex = snum;
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157 currentSlide();
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158 number = 0;
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159 }
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160
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161 function goTo(target) {
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162 if (target >= smax || target == snum) return;
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163 go(target - snum);
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164 }
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165
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166 function subgo(step) {
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167 if (step > 0) {
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168 removeClass(incrementals[snum][incpos - 1],'current');
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169 removeClass(incrementals[snum][incpos], 'incremental');
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170 addClass(incrementals[snum][incpos],'current');
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171 incpos++;
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172 } else {
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173 incpos--;
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174 removeClass(incrementals[snum][incpos],'current');
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175 addClass(incrementals[snum][incpos], 'incremental');
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176 addClass(incrementals[snum][incpos - 1],'current');
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177 }
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178 }
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179
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180 function toggle() {
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181 var slideColl = GetElementsWithClassName('*','slide');
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182 var slides = document.getElementById('slideProj');
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183 var outline = document.getElementById('outlineStyle');
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184 if (!slides.disabled) {
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185 slides.disabled = true;
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186 outline.disabled = false;
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187 s5mode = false;
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188 fontSize('1em');
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189 for (var n = 0; n < smax; n++) {
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190 var slide = slideColl[n];
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191 slide.style.visibility = 'visible';
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192 }
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193 } else {
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194 slides.disabled = false;
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195 outline.disabled = true;
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196 s5mode = true;
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197 fontScale();
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198 for (var n = 0; n < smax; n++) {
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199 var slide = slideColl[n];
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200 slide.style.visibility = 'hidden';
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201 }
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202 slideColl[snum].style.visibility = 'visible';
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203 }
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204 }
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205
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206 function showHide(action) {
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207 var obj = GetElementsWithClassName('*','hideme')[0];
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208 switch (action) {
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209 case 's': obj.style.visibility = 'visible'; break;
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210 case 'h': obj.style.visibility = 'hidden'; break;
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211 case 'k':
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212 if (obj.style.visibility != 'visible') {
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213 obj.style.visibility = 'visible';
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214 } else {
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215 obj.style.visibility = 'hidden';
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216 }
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217 break;
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218 }
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219 }
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220
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221 // 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/)
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222 function keys(key) {
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223 if (!key) {
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224 key = event;
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225 key.which = key.keyCode;
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226 }
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227 if (key.which == 84) {
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228 toggle();
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229 return;
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230 }
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231 if (s5mode) {
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232 switch (key.which) {
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233 case 10: // return
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234 case 13: // enter
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235 if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
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236 if (key.target && isParentOrSelf(key.target, 'controls')) return;
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237 if(number != undef) {
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238 goTo(number);
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239 break;
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240 }
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241 case 32: // spacebar
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242 case 34: // page down
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243 case 39: // rightkey
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244 case 40: // downkey
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245 if(number != undef) {
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246 go(number);
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247 } else if (!incrementals[snum] || incpos >= incrementals[snum].length) {
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248 go(1);
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249 } else {
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250 subgo(1);
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251 }
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252 break;
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253 case 33: // page up
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254 case 37: // leftkey
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255 case 38: // upkey
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256 if(number != undef) {
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257 go(-1 * number);
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258 } else if (!incrementals[snum] || incpos <= 0) {
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259 go(-1);
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260 } else {
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261 subgo(-1);
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262 }
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263 break;
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264 case 36: // home
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265 goTo(0);
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266 break;
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267 case 35: // end
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268 goTo(smax-1);
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269 break;
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270 case 67: // c
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271 showHide('k');
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272 break;
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273 }
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274 if (key.which < 48 || key.which > 57) {
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275 number = undef;
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276 } else {
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277 if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
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278 if (key.target && isParentOrSelf(key.target, 'controls')) return;
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279 number = (((number != undef) ? number : 0) * 10) + (key.which - 48);
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280 }
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281 }
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282 return false;
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283 }
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284
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285 function clicker(e) {
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286 number = undef;
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287 var target;
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288 if (window.event) {
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289 target = window.event.srcElement;
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290 e = window.event;
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291 } else target = e.target;
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292 if (target.getAttribute('href') != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target,'object')) return true;
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293 if (!e.which || e.which == 1) {
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294 if (!incrementals[snum] || incpos >= incrementals[snum].length) {
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295 go(1);
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296 } else {
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297 subgo(1);
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298 }
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299 }
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300 }
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301
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302 function findSlide(hash) {
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303 var target = null;
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304 var slides = GetElementsWithClassName('*','slide');
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305 for (var i = 0; i < slides.length; i++) {
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306 var targetSlide = slides[i];
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307 if ( (targetSlide.name && targetSlide.name == hash)
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308 || (targetSlide.id && targetSlide.id == hash) ) {
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309 target = targetSlide;
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310 break;
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311 }
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312 }
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313 while(target != null && target.nodeName != 'BODY') {
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314 if (hasClass(target, 'slide')) {
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315 return parseInt(target.id.slice(5));
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316 }
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317 target = target.parentNode;
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318 }
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319 return null;
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320 }
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321
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322 function slideJump() {
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323 if (window.location.hash == null) return;
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324 var sregex = /^#slide(\d+)$/;
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325 var matches = sregex.exec(window.location.hash);
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326 var dest = null;
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327 if (matches != null) {
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328 dest = parseInt(matches[1]);
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329 } else {
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330 dest = findSlide(window.location.hash.slice(1));
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331 }
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332 if (dest != null)
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333 go(dest - snum);
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334 }
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335
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336 function fixLinks() {
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337 var thisUri = window.location.href;
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338 thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length);
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339 var aelements = document.getElementsByTagName('A');
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340 for (var i = 0; i < aelements.length; i++) {
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341 var a = aelements[i].href;
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342 var slideID = a.match('\#slide[0-9]{1,2}');
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343 if ((slideID) && (slideID[0].slice(0,1) == '#')) {
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344 var dest = findSlide(slideID[0].slice(1));
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345 if (dest != null) {
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346 if (aelements[i].addEventListener) {
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347 aelements[i].addEventListener("click", new Function("e",
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348 "if (document.getElementById('slideProj').disabled) return;" +
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349 "go("+dest+" - snum); " +
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350 "if (e.preventDefault) e.preventDefault();"), true);
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351 } else if (aelements[i].attachEvent) {
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352 aelements[i].attachEvent("onclick", new Function("",
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353 "if (document.getElementById('slideProj').disabled) return;" +
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354 "go("+dest+" - snum); " +
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355 "event.returnValue = false;"));
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356 }
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357 }
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358 }
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359 }
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360 }
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361
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362 function externalLinks() {
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363 if (!document.getElementsByTagName) return;
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364 var anchors = document.getElementsByTagName('a');
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365 for (var i=0; i<anchors.length; i++) {
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366 var anchor = anchors[i];
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367 if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) {
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368 anchor.target = '_blank';
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369 addClass(anchor,'external');
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370 }
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371 }
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372 }
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373
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374 function createControls() {
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375 var controlsDiv = document.getElementById("controls");
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376 if (!controlsDiv) return;
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377 var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"';
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378 var hideDiv, hideList = '';
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379 if (controlVis == 'hidden') {
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380 hideDiv = hider;
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381 } else {
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382 hideList = hider;
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383 }
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384 controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' +
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385 '<div id="navLinks">' +
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386 '<a accesskey="t" id="toggle" href="javascript:toggle();">Ø<\/a>' +
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387 '<a accesskey="z" id="prev" href="javascript:go(-1);">«<\/a>' +
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388 '<a accesskey="x" id="next" href="javascript:go(1);">»<\/a>' +
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389 '<div id="navList"' + hideList + '><select id="jumplist" onchange="go(\'j\');"><\/select><\/div>' +
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390 '<\/div><\/form>';
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391 if (controlVis == 'hidden') {
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392 var hidden = document.getElementById('navLinks');
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393 } else {
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394 var hidden = document.getElementById('jumplist');
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395 }
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396 addClass(hidden,'hideme');
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397 }
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398
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399 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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400 if (!s5mode) return false;
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401 var vScale = 22; // both yield 32 (after rounding) at 1024x768
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402 var hScale = 32; // perhaps should auto-calculate based on theme's declared value?
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403 if (window.innerHeight) {
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404 var vSize = window.innerHeight;
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405 var hSize = window.innerWidth;
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406 } else if (document.documentElement.clientHeight) {
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407 var vSize = document.documentElement.clientHeight;
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408 var hSize = document.documentElement.clientWidth;
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409 } else if (document.body.clientHeight) {
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410 var vSize = document.body.clientHeight;
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411 var hSize = document.body.clientWidth;
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412 } else {
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413 var vSize = 700; // assuming 1024x768, minus chrome and such
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414 var hSize = 1024; // these do not account for kiosk mode or Opera Show
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415 }
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416 var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale));
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417 fontSize(newSize + 'px');
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418 if (isGe) { // hack to counter incremental reflow bugs
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419 var obj = document.getElementsByTagName('body')[0];
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420 obj.style.display = 'none';
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421 obj.style.display = 'block';
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422 }
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423 }
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424
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425 function fontSize(value) {
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426 if (!(s5ss = document.getElementById('s5ss'))) {
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427 if (!isIE) {
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428 document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style'));
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429 s5ss.setAttribute('media','screen, projection');
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430 s5ss.setAttribute('id','s5ss');
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431 } else {
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432 document.createStyleSheet();
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433 document.s5ss = document.styleSheets[document.styleSheets.length - 1];
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434 }
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435 }
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436 if (!isIE) {
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437 while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild);
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438 s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}'));
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439 } else {
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440 document.s5ss.addRule('body','font-size: ' + value + ' !important;');
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441 }
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442 }
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443
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444 function notOperaFix() {
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445 slideCSS = document.getElementById('slideProj').href;
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446 var slides = document.getElementById('slideProj');
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447 var outline = document.getElementById('outlineStyle');
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448 slides.setAttribute('media','screen');
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449 outline.disabled = true;
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450 if (isGe) {
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451 slides.setAttribute('href','null'); // Gecko fix
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452 slides.setAttribute('href',slideCSS); // Gecko fix
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453 }
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454 if (isIE && document.styleSheets && document.styleSheets[0]) {
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455 document.styleSheets[0].addRule('img', 'behavior: url(ui/default/iepngfix.htc)');
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456 document.styleSheets[0].addRule('div', 'behavior: url(ui/default/iepngfix.htc)');
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457 document.styleSheets[0].addRule('.slide', 'behavior: url(ui/default/iepngfix.htc)');
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458 }
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459 }
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460
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461 function getIncrementals(obj) {
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462 var incrementals = new Array();
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463 if (!obj)
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464 return incrementals;
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465 var children = obj.childNodes;
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466 for (var i = 0; i < children.length; i++) {
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467 var child = children[i];
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468 if (hasClass(child, 'incremental')) {
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469 if (child.nodeName == 'OL' || child.nodeName == 'UL') {
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470 removeClass(child, 'incremental');
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471 for (var j = 0; j < child.childNodes.length; j++) {
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472 if (child.childNodes[j].nodeType == 1) {
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473 addClass(child.childNodes[j], 'incremental');
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474 }
|
|
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475 }
|
|
|
476 } else {
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|
477 incrementals[incrementals.length] = child;
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|
|
478 removeClass(child,'incremental');
|
|
|
479 }
|
|
|
480 }
|
|
|
481 if (hasClass(child, 'show-first')) {
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|
482 if (child.nodeName == 'OL' || child.nodeName == 'UL') {
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|
|
483 removeClass(child, 'show-first');
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|
|
484 if (child.childNodes[isGe].nodeType == 1) {
|
|
|
485 removeClass(child.childNodes[isGe], 'incremental');
|
|
|
486 }
|
|
|
487 } else {
|
|
|
488 incrementals[incrementals.length] = child;
|
|
|
489 }
|
|
|
490 }
|
|
|
491 incrementals = incrementals.concat(getIncrementals(child));
|
|
|
492 }
|
|
|
493 return incrementals;
|
|
|
494 }
|
|
|
495
|
|
|
496 function createIncrementals() {
|
|
|
497 var incrementals = new Array();
|
|
|
498 for (var i = 0; i < smax; i++) {
|
|
|
499 incrementals[i] = getIncrementals(document.getElementById('slide'+i));
|
|
|
500 }
|
|
|
501 return incrementals;
|
|
|
502 }
|
|
|
503
|
|
|
504 function defaultCheck() {
|
|
|
505 var allMetas = document.getElementsByTagName('meta');
|
|
|
506 for (var i = 0; i< allMetas.length; i++) {
|
|
|
507 if (allMetas[i].name == 'defaultView') {
|
|
|
508 defaultView = allMetas[i].content;
|
|
|
509 }
|
|
|
510 if (allMetas[i].name == 'controlVis') {
|
|
|
511 controlVis = allMetas[i].content;
|
|
|
512 }
|
|
|
513 }
|
|
|
514 }
|
|
|
515
|
|
|
516 // Key trap fix, new function body for trap()
|
|
|
517 function trap(e) {
|
|
|
518 if (!e) {
|
|
|
519 e = event;
|
|
|
520 e.which = e.keyCode;
|
|
|
521 }
|
|
|
522 try {
|
|
|
523 modifierKey = e.ctrlKey || e.altKey || e.metaKey;
|
|
|
524 }
|
|
|
525 catch(e) {
|
|
|
526 modifierKey = false;
|
|
|
527 }
|
|
|
528 return modifierKey || e.which == 0;
|
|
|
529 }
|
|
|
530
|
|
|
531 function startup() {
|
|
|
532 defaultCheck();
|
|
|
533 if (!isOp)
|
|
|
534 createControls();
|
|
|
535 slideLabel();
|
|
|
536 fixLinks();
|
|
|
537 externalLinks();
|
|
|
538 fontScale();
|
|
|
539 if (!isOp) {
|
|
|
540 notOperaFix();
|
|
|
541 incrementals = createIncrementals();
|
|
|
542 slideJump();
|
|
|
543 if (defaultView == 'outline') {
|
|
|
544 toggle();
|
|
|
545 }
|
|
|
546 document.onkeyup = keys;
|
|
|
547 document.onkeypress = trap;
|
|
|
548 document.onclick = clicker;
|
|
|
549 }
|
|
|
550 }
|
|
|
551
|
|
|
552 window.onload = startup;
|
|
|
553 window.onresize = function(){setTimeout('fontScale()', 50);} |
