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root / onto / talks / mo-ismir-2007 / ui / default / slides.js @ 0:1e44d666ced1
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// S5 v1.1 slides.js -- released into the Public Domain
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//
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// Please see http://www.meyerweb.com/eric/tools/s5/credits.html for information
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// about all the wonderful and talented contributors to this code!
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|
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var undef;
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var slideCSS = ''; |
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var snum = 0; |
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var smax = 1; |
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var incpos = 0; |
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var number = undef;
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var s5mode = true; |
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var defaultView = 'slideshow'; |
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var controlVis = 'visible'; |
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|
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var isIE = navigator.appName == 'Microsoft Internet Explorer' ? 1 : 0; |
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var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0; |
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var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0; |
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|
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function hasClass(object, className) { |
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if (!object.className) return false; |
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return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1); |
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} |
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|
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function hasValue(object, value) { |
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if (!object) return false; |
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return (object.search('(^|\\s)' + value + '(\\s|$)') != -1); |
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} |
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|
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function removeClass(object,className) { |
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if (!object) return; |
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object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2); |
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} |
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|
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function addClass(object,className) { |
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if (!object || hasClass(object, className)) return; |
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if (object.className) {
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object.className += ' '+className;
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} else {
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object.className = className; |
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} |
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} |
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|
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function GetElementsWithClassName(elementName,className) { |
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var allElements = document.getElementsByTagName(elementName);
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var elemColl = new Array(); |
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for (var i = 0; i< allElements.length; i++) { |
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if (hasClass(allElements[i], className)) {
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elemColl[elemColl.length] = allElements[i]; |
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} |
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} |
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return elemColl;
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} |
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|
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function isParentOrSelf(element, id) { |
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if (element == null || element.nodeName=='BODY') return false; |
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else if (element.id == id) return true; |
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else return isParentOrSelf(element.parentNode, id); |
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} |
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|
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function nodeValue(node) { |
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var result = ""; |
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if (node.nodeType == 1) { |
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var children = node.childNodes;
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for (var i = 0; i < children.length; ++i) { |
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result += nodeValue(children[i]); |
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} |
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} |
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else if (node.nodeType == 3) { |
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result = node.nodeValue; |
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} |
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return(result);
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} |
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|
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function slideLabel() { |
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var slideColl = GetElementsWithClassName('*','slide'); |
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var list = document.getElementById('jumplist'); |
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smax = slideColl.length; |
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for (var n = 0; n < smax; n++) { |
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var obj = slideColl[n];
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var did = 'slide' + n.toString(); |
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obj.setAttribute('id',did);
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if (isOp) continue; |
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var otext = ''; |
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var menu = obj.firstChild;
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if (!menu) continue; // to cope with empty slides |
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while (menu && menu.nodeType == 3) { |
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menu = menu.nextSibling; |
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} |
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if (!menu) continue; // to cope with slides with only text nodes |
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|
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var menunodes = menu.childNodes;
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for (var o = 0; o < menunodes.length; o++) { |
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otext += nodeValue(menunodes[o]); |
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} |
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list.options[list.length] = new Option(n + ' : ' + otext, n); |
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} |
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} |
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function currentSlide() { |
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var cs;
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if (document.getElementById) {
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cs = document.getElementById('currentSlide');
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} else {
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cs = document.currentSlide; |
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} |
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cs.innerHTML = '<span id="csHere">' + snum + '<\/span> ' + |
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'<span id="csSep">\/<\/span> ' +
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'<span id="csTotal">' + (smax-1) + '<\/span>'; |
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if (snum == 0) { |
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cs.style.visibility = 'hidden';
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} else {
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cs.style.visibility = 'visible';
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} |
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} |
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function go(step) { |
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if (document.getElementById('slideProj').disabled || step == 0) return; |
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var jl = document.getElementById('jumplist'); |
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var cid = 'slide' + snum; |
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var ce = document.getElementById(cid);
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if (incrementals[snum].length > 0) { |
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for (var i = 0; i < incrementals[snum].length; i++) { |
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removeClass(incrementals[snum][i], 'current');
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removeClass(incrementals[snum][i], 'incremental');
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} |
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} |
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if (step != 'j') { |
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snum += step; |
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lmax = smax - 1;
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if (snum > lmax) snum = lmax;
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if (snum < 0) snum = 0; |
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} else
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snum = parseInt(jl.value); |
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var nid = 'slide' + snum; |
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var ne = document.getElementById(nid);
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if (!ne) {
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ne = document.getElementById('slide0');
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snum = 0;
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} |
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if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;} |
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if (incrementals[snum].length > 0 && incpos == 0) { |
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for (var i = 0; i < incrementals[snum].length; i++) { |
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if (hasClass(incrementals[snum][i], 'current')) |
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incpos = i + 1;
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else
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addClass(incrementals[snum][i], 'incremental');
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} |
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} |
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if (incrementals[snum].length > 0 && incpos > 0) |
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addClass(incrementals[snum][incpos - 1], 'current'); |
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ce.style.visibility = 'hidden';
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ne.style.visibility = 'visible';
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jl.selectedIndex = snum; |
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currentSlide(); |
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number = 0;
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} |
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function goTo(target) { |
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if (target >= smax || target == snum) return; |
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go(target - snum); |
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} |
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function subgo(step) { |
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if (step > 0) { |
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removeClass(incrementals[snum][incpos - 1],'current'); |
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removeClass(incrementals[snum][incpos], 'incremental');
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addClass(incrementals[snum][incpos],'current');
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incpos++; |
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} else {
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incpos--; |
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removeClass(incrementals[snum][incpos],'current');
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addClass(incrementals[snum][incpos], 'incremental');
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addClass(incrementals[snum][incpos - 1],'current'); |
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} |
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} |
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function toggle() { |
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var slideColl = GetElementsWithClassName('*','slide'); |
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var slides = document.getElementById('slideProj'); |
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var outline = document.getElementById('outlineStyle'); |
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if (!slides.disabled) {
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slides.disabled = true;
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outline.disabled = false;
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s5mode = false;
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fontSize('1em');
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for (var n = 0; n < smax; n++) { |
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var slide = slideColl[n];
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slide.style.visibility = 'visible';
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} |
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} else {
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slides.disabled = false;
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outline.disabled = true;
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s5mode = true;
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fontScale(); |
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for (var n = 0; n < smax; n++) { |
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var slide = slideColl[n];
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slide.style.visibility = 'hidden';
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} |
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slideColl[snum].style.visibility = 'visible';
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} |
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} |
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function showHide(action) { |
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var obj = GetElementsWithClassName('*','hideme')[0]; |
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switch (action) {
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case 's': obj.style.visibility = 'visible'; break; |
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case 'h': obj.style.visibility = 'hidden'; break; |
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case 'k': |
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if (obj.style.visibility != 'visible') { |
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obj.style.visibility = 'visible';
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} else {
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obj.style.visibility = 'hidden';
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} |
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break;
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} |
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} |
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// 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/)
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function keys(key) { |
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if (!key) {
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key = event; |
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key.which = key.keyCode; |
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} |
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if (key.which == 84) { |
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toggle(); |
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return;
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} |
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if (s5mode) {
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switch (key.which) {
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case 10: // return |
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case 13: // enter |
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if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return; |
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if (key.target && isParentOrSelf(key.target, 'controls')) return; |
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if(number != undef) {
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goTo(number); |
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break;
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} |
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case 32: // spacebar |
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case 34: // page down |
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case 39: // rightkey |
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case 40: // downkey |
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if(number != undef) {
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go(number); |
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} else if (!incrementals[snum] || incpos >= incrementals[snum].length) { |
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go(1);
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} else {
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subgo(1);
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} |
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break;
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case 33: // page up |
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case 37: // leftkey |
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case 38: // upkey |
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if(number != undef) {
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go(-1 * number);
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} else if (!incrementals[snum] || incpos <= 0) { |
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go(-1);
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} else {
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subgo(-1);
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} |
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break;
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case 36: // home |
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goTo(0);
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break;
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case 35: // end |
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goTo(smax-1);
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break;
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case 67: // c |
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showHide('k');
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break;
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} |
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if (key.which < 48 || key.which > 57) { |
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number = undef; |
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} else {
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if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return; |
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if (key.target && isParentOrSelf(key.target, 'controls')) return; |
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number = (((number != undef) ? number : 0) * 10) + (key.which - 48); |
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} |
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} |
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return false; |
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} |
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function clicker(e) { |
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number = undef; |
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var target;
|
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if (window.event) {
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target = window.event.srcElement; |
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e = window.event; |
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} else target = e.target;
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if (target.getAttribute('href') != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target,'object')) return true; |
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if (!e.which || e.which == 1) { |
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if (!incrementals[snum] || incpos >= incrementals[snum].length) {
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go(1);
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} else {
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subgo(1);
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} |
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} |
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} |
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|
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function findSlide(hash) { |
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var target = null; |
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var slides = GetElementsWithClassName('*','slide'); |
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for (var i = 0; i < slides.length; i++) { |
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var targetSlide = slides[i];
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if ( (targetSlide.name && targetSlide.name == hash)
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|| (targetSlide.id && targetSlide.id == hash) ) {
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target = targetSlide; |
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break;
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} |
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} |
| 313 |
while(target != null && target.nodeName != 'BODY') { |
| 314 |
if (hasClass(target, 'slide')) { |
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return parseInt(target.id.slice(5)); |
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} |
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target = target.parentNode; |
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} |
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return null; |
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} |
| 321 |
|
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function slideJump() { |
| 323 |
if (window.location.hash == null) return; |
| 324 |
var sregex = /^#slide(\d+)$/; |
| 325 |
var matches = sregex.exec(window.location.hash);
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var dest = null; |
| 327 |
if (matches != null) { |
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dest = parseInt(matches[1]);
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} else {
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dest = findSlide(window.location.hash.slice(1));
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} |
| 332 |
if (dest != null) |
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go(dest - snum); |
| 334 |
} |
| 335 |
|
| 336 |
function fixLinks() { |
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var thisUri = window.location.href;
|
| 338 |
thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length);
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var aelements = document.getElementsByTagName('A'); |
| 340 |
for (var i = 0; i < aelements.length; i++) { |
| 341 |
var a = aelements[i].href;
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var slideID = a.match('\#slide[0-9]{1,2}'); |
| 343 |
if ((slideID) && (slideID[0].slice(0,1) == '#')) { |
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var dest = findSlide(slideID[0].slice(1)); |
| 345 |
if (dest != null) { |
| 346 |
if (aelements[i].addEventListener) {
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aelements[i].addEventListener("click", new Function("e", |
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"if (document.getElementById('slideProj').disabled) return;" +
|
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"go("+dest+" - snum); " + |
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"if (e.preventDefault) e.preventDefault();"), true); |
| 351 |
} else if (aelements[i].attachEvent) { |
| 352 |
aelements[i].attachEvent("onclick", new Function("", |
| 353 |
"if (document.getElementById('slideProj').disabled) return;" +
|
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"go("+dest+" - snum); " + |
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"event.returnValue = false;"));
|
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} |
| 357 |
} |
| 358 |
} |
| 359 |
} |
| 360 |
} |
| 361 |
|
| 362 |
function externalLinks() { |
| 363 |
if (!document.getElementsByTagName) return; |
| 364 |
var anchors = document.getElementsByTagName('a'); |
| 365 |
for (var i=0; i<anchors.length; i++) { |
| 366 |
var anchor = anchors[i];
|
| 367 |
if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) { |
| 368 |
anchor.target = '_blank';
|
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addClass(anchor,'external');
|
| 370 |
} |
| 371 |
} |
| 372 |
} |
| 373 |
|
| 374 |
function createControls() { |
| 375 |
var controlsDiv = document.getElementById("controls"); |
| 376 |
if (!controlsDiv) return; |
| 377 |
var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"'; |
| 378 |
var hideDiv, hideList = ''; |
| 379 |
if (controlVis == 'hidden') { |
| 380 |
hideDiv = hider; |
| 381 |
} else {
|
| 382 |
hideList = hider; |
| 383 |
} |
| 384 |
controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' + |
| 385 |
'<div id="navLinks">' +
|
| 386 |
'<a accesskey="t" id="toggle" href="javascript:toggle();">Ø<\/a>' +
|
| 387 |
'<a accesskey="z" id="prev" href="javascript:go(-1);">«<\/a>' +
|
| 388 |
'<a accesskey="x" id="next" href="javascript:go(1);">»<\/a>' +
|
| 389 |
'<div id="navList"' + hideList + '><select id="jumplist" onchange="go(\'j\');"><\/select><\/div>' + |
| 390 |
'<\/div><\/form>';
|
| 391 |
if (controlVis == 'hidden') { |
| 392 |
var hidden = document.getElementById('navLinks'); |
| 393 |
} else {
|
| 394 |
var hidden = document.getElementById('jumplist'); |
| 395 |
} |
| 396 |
addClass(hidden,'hideme');
|
| 397 |
} |
| 398 |
|
| 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 |
| 400 |
if (!s5mode) return false; |
| 401 |
var vScale = 22; // both yield 32 (after rounding) at 1024x768 |
| 402 |
var hScale = 32; // perhaps should auto-calculate based on theme's declared value? |
| 403 |
if (window.innerHeight) {
|
| 404 |
var vSize = window.innerHeight;
|
| 405 |
var hSize = window.innerWidth;
|
| 406 |
} else if (document.documentElement.clientHeight) { |
| 407 |
var vSize = document.documentElement.clientHeight;
|
| 408 |
var hSize = document.documentElement.clientWidth;
|
| 409 |
} else if (document.body.clientHeight) { |
| 410 |
var vSize = document.body.clientHeight;
|
| 411 |
var hSize = document.body.clientWidth;
|
| 412 |
} else {
|
| 413 |
var vSize = 700; // assuming 1024x768, minus chrome and such |
| 414 |
var hSize = 1024; // these do not account for kiosk mode or Opera Show |
| 415 |
} |
| 416 |
var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale));
|
| 417 |
fontSize(newSize + 'px');
|
| 418 |
if (isGe) { // hack to counter incremental reflow bugs |
| 419 |
var obj = document.getElementsByTagName('body')[0]; |
| 420 |
obj.style.display = 'none';
|
| 421 |
obj.style.display = 'block';
|
| 422 |
} |
| 423 |
} |
| 424 |
|
| 425 |
function fontSize(value) { |
| 426 |
if (!(s5ss = document.getElementById('s5ss'))) { |
| 427 |
if (!isIE) {
|
| 428 |
document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style')); |
| 429 |
s5ss.setAttribute('media','screen, projection'); |
| 430 |
s5ss.setAttribute('id','s5ss'); |
| 431 |
} else {
|
| 432 |
document.createStyleSheet(); |
| 433 |
document.s5ss = document.styleSheets[document.styleSheets.length - 1];
|
| 434 |
} |
| 435 |
} |
| 436 |
if (!isIE) {
|
| 437 |
while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild);
|
| 438 |
s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}')); |
| 439 |
} else {
|
| 440 |
document.s5ss.addRule('body','font-size: ' + value + ' !important;'); |
| 441 |
} |
| 442 |
} |
| 443 |
|
| 444 |
function notOperaFix() { |
| 445 |
slideCSS = document.getElementById('slideProj').href;
|
| 446 |
var slides = document.getElementById('slideProj'); |
| 447 |
var outline = document.getElementById('outlineStyle'); |
| 448 |
slides.setAttribute('media','screen'); |
| 449 |
outline.disabled = true;
|
| 450 |
if (isGe) {
|
| 451 |
slides.setAttribute('href','null'); // Gecko fix |
| 452 |
slides.setAttribute('href',slideCSS); // Gecko fix |
| 453 |
} |
| 454 |
if (isIE && document.styleSheets && document.styleSheets[0]) { |
| 455 |
document.styleSheets[0].addRule('img', 'behavior: url(ui/default/iepngfix.htc)'); |
| 456 |
document.styleSheets[0].addRule('div', 'behavior: url(ui/default/iepngfix.htc)'); |
| 457 |
document.styleSheets[0].addRule('.slide', 'behavior: url(ui/default/iepngfix.htc)'); |
| 458 |
} |
| 459 |
} |
| 460 |
|
| 461 |
function getIncrementals(obj) { |
| 462 |
var incrementals = new Array(); |
| 463 |
if (!obj)
|
| 464 |
return incrementals;
|
| 465 |
var children = obj.childNodes;
|
| 466 |
for (var i = 0; i < children.length; i++) { |
| 467 |
var child = children[i];
|
| 468 |
if (hasClass(child, 'incremental')) { |
| 469 |
if (child.nodeName == 'OL' || child.nodeName == 'UL') { |
| 470 |
removeClass(child, 'incremental');
|
| 471 |
for (var j = 0; j < child.childNodes.length; j++) { |
| 472 |
if (child.childNodes[j].nodeType == 1) { |
| 473 |
addClass(child.childNodes[j], 'incremental');
|
| 474 |
} |
| 475 |
} |
| 476 |
} else {
|
| 477 |
incrementals[incrementals.length] = child; |
| 478 |
removeClass(child,'incremental');
|
| 479 |
} |
| 480 |
} |
| 481 |
if (hasClass(child, 'show-first')) { |
| 482 |
if (child.nodeName == 'OL' || child.nodeName == 'UL') { |
| 483 |
removeClass(child, 'show-first');
|
| 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) createControls();
|
| 534 |
slideLabel(); |
| 535 |
fixLinks(); |
| 536 |
externalLinks(); |
| 537 |
fontScale(); |
| 538 |
if (!isOp) {
|
| 539 |
notOperaFix(); |
| 540 |
incrementals = createIncrementals(); |
| 541 |
slideJump(); |
| 542 |
if (defaultView == 'outline') { |
| 543 |
toggle(); |
| 544 |
} |
| 545 |
document.onkeyup = keys; |
| 546 |
document.onkeypress = trap; |
| 547 |
document.onclick = clicker; |
| 548 |
} |
| 549 |
} |
| 550 |
|
| 551 |
window.onload = startup; |
| 552 |
window.onresize = function(){setTimeout('fontScale()', 50);} |