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558 lines
15 KiB
558 lines
15 KiB
// S5 v1.1 slides.js -- released into the Public Domain |
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// Modified for Docutils (http://docutils.sf.net) by David Goodger |
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// |
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// Please see http://www.meyerweb.com/eric/tools/s5/credits.html for |
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// information about all the wonderful and talented contributors to this code! |
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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 slideIDs = new Array(); |
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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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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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function hasClass(object, className) { |
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if (!object.className) return false; |
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return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1); |
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} |
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function hasValue(object, value) { |
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if (!object) return false; |
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return (object.search('(^|\\s)' + value + '(\\s|$)') != -1); |
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} |
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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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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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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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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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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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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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if (obj.getAttribute('id')) { |
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slideIDs[n] = obj.getAttribute('id'); |
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} |
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else { |
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obj.setAttribute('id',did); |
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slideIDs[n] = did; |
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} |
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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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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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var footer_nodes; |
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var vis = 'visible'; |
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if (document.getElementById) { |
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cs = document.getElementById('currentSlide'); |
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footer_nodes = document.getElementById('footer').childNodes; |
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} else { |
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cs = document.currentSlide; |
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footer = document.footer.childNodes; |
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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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vis = 'hidden'; |
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} |
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cs.style.visibility = vis; |
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for (var i = 0; i < footer_nodes.length; i++) { |
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if (footer_nodes[i].nodeType == 1) { |
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footer_nodes[i].style.visibility = vis; |
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} |
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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 = slideIDs[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 = slideIDs[snum]; |
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var ne = document.getElementById(nid); |
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if (!ne) { |
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ne = document.getElementById(slideIDs[0]); |
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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.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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function findSlide(hash) { |
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var target = document.getElementById(hash); |
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if (target) { |
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for (var i = 0; i < slideIDs.length; i++) { |
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if (target.id == slideIDs[i]) return i; |
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} |
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} |
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return null; |
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} |
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function slideJump() { |
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if (window.location.hash == null || window.location.hash == '') { |
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currentSlide(); |
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return; |
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} |
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if (window.location.hash == null) return; |
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var dest = null; |
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dest = findSlide(window.location.hash.slice(1)); |
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if (dest == null) { |
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dest = 0; |
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} |
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go(dest - snum); |
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} |
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function fixLinks() { |
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var thisUri = window.location.href; |
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thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length); |
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var aelements = document.getElementsByTagName('A'); |
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for (var i = 0; i < aelements.length; i++) { |
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var a = aelements[i].href; |
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var slideID = a.match('\#.+'); |
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if ((slideID) && (slideID[0].slice(0,1) == '#')) { |
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var dest = findSlide(slideID[0].slice(1)); |
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if (dest != null) { |
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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); |
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} else if (aelements[i].attachEvent) { |
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aelements[i].attachEvent("onclick", new Function("", |
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"if (document.getElementById('slideProj').disabled) return;" + |
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"go("+dest+" - snum); " + |
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"event.returnValue = false;")); |
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} |
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} |
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} |
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} |
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} |
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function externalLinks() { |
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if (!document.getElementsByTagName) return; |
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var anchors = document.getElementsByTagName('a'); |
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for (var i=0; i<anchors.length; i++) { |
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var anchor = anchors[i]; |
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if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) { |
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anchor.target = '_blank'; |
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addClass(anchor,'external'); |
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} |
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} |
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} |
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function createControls() { |
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var controlsDiv = document.getElementById("controls"); |
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if (!controlsDiv) return; |
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var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"'; |
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var hideDiv, hideList = ''; |
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if (controlVis == 'hidden') { |
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hideDiv = hider; |
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} else { |
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hideList = hider; |
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} |
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controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' + |
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'<div id="navLinks">' + |
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'<a accesskey="t" id="toggle" href="javascript:toggle();">Ø<\/a>' + |
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'<a accesskey="z" id="prev" href="javascript:go(-1);">«<\/a>' + |
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'<a accesskey="x" id="next" href="javascript:go(1);">»<\/a>' + |
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'<div id="navList"' + hideList + '><select id="jumplist" onchange="go(\'j\');"><\/select><\/div>' + |
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'<\/div><\/form>'; |
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if (controlVis == 'hidden') { |
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var hidden = document.getElementById('navLinks'); |
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} else { |
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var hidden = document.getElementById('jumplist'); |
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} |
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addClass(hidden,'hideme'); |
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} |
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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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if (!s5mode) return false; |
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var vScale = 22; // both yield 32 (after rounding) at 1024x768 |
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var hScale = 32; // perhaps should auto-calculate based on theme's declared value? |
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if (window.innerHeight) { |
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var vSize = window.innerHeight; |
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var hSize = window.innerWidth; |
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} else if (document.documentElement.clientHeight) { |
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var vSize = document.documentElement.clientHeight; |
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var hSize = document.documentElement.clientWidth; |
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} else if (document.body.clientHeight) { |
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var vSize = document.body.clientHeight; |
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var hSize = document.body.clientWidth; |
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} else { |
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var vSize = 700; // assuming 1024x768, minus chrome and such |
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var hSize = 1024; // these do not account for kiosk mode or Opera Show |
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} |
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var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale)); |
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fontSize(newSize + 'px'); |
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if (isGe) { // hack to counter incremental reflow bugs |
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var obj = document.getElementsByTagName('body')[0]; |
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obj.style.display = 'none'; |
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obj.style.display = 'block'; |
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} |
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} |
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function fontSize(value) { |
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if (!(s5ss = document.getElementById('s5ss'))) { |
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if (!isIE) { |
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document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style')); |
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s5ss.setAttribute('media','screen, projection'); |
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s5ss.setAttribute('id','s5ss'); |
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} else { |
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document.createStyleSheet(); |
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document.s5ss = document.styleSheets[document.styleSheets.length - 1]; |
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} |
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} |
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if (!isIE) { |
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while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild); |
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s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}')); |
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} else { |
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document.s5ss.addRule('body','font-size: ' + value + ' !important;'); |
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} |
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} |
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function notOperaFix() { |
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slideCSS = document.getElementById('slideProj').href; |
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var slides = document.getElementById('slideProj'); |
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var outline = document.getElementById('outlineStyle'); |
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slides.setAttribute('media','screen'); |
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outline.disabled = true; |
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if (isGe) { |
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slides.setAttribute('href','null'); // Gecko fix |
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slides.setAttribute('href',slideCSS); // Gecko fix |
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} |
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if (isIE && document.styleSheets && document.styleSheets[0]) { |
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document.styleSheets[0].addRule('img', 'behavior: url(ui/small-black/iepngfix.htc)'); |
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document.styleSheets[0].addRule('div', 'behavior: url(ui/small-black/iepngfix.htc)'); |
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document.styleSheets[0].addRule('.slide', 'behavior: url(ui/small-black/iepngfix.htc)'); |
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} |
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} |
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function getIncrementals(obj) { |
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var incrementals = new Array(); |
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if (!obj) |
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return incrementals; |
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var children = obj.childNodes; |
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for (var i = 0; i < children.length; i++) { |
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var child = children[i]; |
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if (hasClass(child, 'incremental')) { |
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if (child.nodeName == 'OL' || child.nodeName == 'UL') { |
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removeClass(child, 'incremental'); |
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for (var j = 0; j < child.childNodes.length; j++) { |
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if (child.childNodes[j].nodeType == 1) { |
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addClass(child.childNodes[j], 'incremental'); |
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} |
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} |
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} else { |
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incrementals[incrementals.length] = child; |
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removeClass(child,'incremental'); |
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} |
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} |
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if (hasClass(child, 'show-first')) { |
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if (child.nodeName == 'OL' || child.nodeName == 'UL') { |
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removeClass(child, 'show-first'); |
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if (child.childNodes[isGe].nodeType == 1) { |
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removeClass(child.childNodes[isGe], 'incremental'); |
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} |
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} else { |
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incrementals[incrementals.length] = child; |
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} |
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} |
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incrementals = incrementals.concat(getIncrementals(child)); |
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} |
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return incrementals; |
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} |
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function createIncrementals() { |
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var incrementals = new Array(); |
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for (var i = 0; i < smax; i++) { |
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incrementals[i] = getIncrementals(document.getElementById(slideIDs[i])); |
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} |
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return incrementals; |
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} |
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function defaultCheck() { |
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var allMetas = document.getElementsByTagName('meta'); |
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for (var i = 0; i< allMetas.length; i++) { |
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if (allMetas[i].name == 'defaultView') { |
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defaultView = allMetas[i].content; |
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} |
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if (allMetas[i].name == 'controlVis') { |
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controlVis = allMetas[i].content; |
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} |
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} |
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} |
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// Key trap fix, new function body for trap() |
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function trap(e) { |
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if (!e) { |
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e = event; |
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e.which = e.keyCode; |
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} |
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try { |
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modifierKey = e.ctrlKey || e.altKey || e.metaKey; |
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} |
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catch(e) { |
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modifierKey = false; |
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} |
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return modifierKey || e.which == 0; |
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} |
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function startup() { |
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defaultCheck(); |
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if (!isOp) createControls(); |
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slideLabel(); |
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fixLinks(); |
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externalLinks(); |
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fontScale(); |
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if (!isOp) { |
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notOperaFix(); |
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incrementals = createIncrementals(); |
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slideJump(); |
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if (defaultView == 'outline') { |
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toggle(); |
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} |
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document.onkeyup = keys; |
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document.onkeypress = trap; |
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document.onclick = clicker; |
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} |
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} |
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window.onload = startup; |
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window.onresize = function(){setTimeout('fontScale()', 50);}
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