[1182] | 1 | <attach event="ondocumentready" handler="parseStylesheets" /> |
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[2712] | 2 | <script> |
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[1182] | 3 | /** |
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[2712] | 4 | * Whatever:hover - V1.42.060206 - hover & active |
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| 5 | * ------------------------------------------------------------ |
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| 6 | * (c) 2005 - Peter Nederlof |
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| 7 | * Peterned - http://www.xs4all.nl/~peterned/ |
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| 8 | * License - http://creativecommons.org/licenses/LGPL/2.1/ |
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[1182] | 9 | * |
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[2712] | 10 | * Whatever:hover is free software; you can redistribute it and/or |
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| 11 | * modify it under the terms of the GNU Lesser General Public |
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| 12 | * License as published by the Free Software Foundation; either |
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| 13 | * version 2.1 of the License, or (at your option) any later version. |
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[1182] | 14 | * |
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[2712] | 15 | * Whatever:hover is distributed in the hope that it will be useful, |
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 18 | * Lesser General Public License for more details. |
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| 19 | * |
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| 20 | * Credits and thanks to: |
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| 21 | * Arnoud Berendsen, Martin Reurings, Robert Hanson |
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| 22 | * |
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| 23 | * howto: body { behavior:url("csshover.htc"); } |
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| 24 | * ------------------------------------------------------------ |
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[1182] | 25 | */ |
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| 26 | |
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[2712] | 27 | var csshoverReg = /(^|\s)(([^a]([^ ]+)?)|(a([^#.][^ ]+)+)):(hover|active)/i, |
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| 28 | currentSheet, doc = window.document, hoverEvents = [], activators = { |
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| 29 | onhover:{on:'onmouseover', off:'onmouseout'}, |
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| 30 | onactive:{on:'onmousedown', off:'onmouseup'} |
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| 31 | } |
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| 32 | |
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[1182] | 33 | function parseStylesheets() { |
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[2712] | 34 | if(!/MSIE (5|6)/.test(navigator.userAgent)) return; |
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| 35 | window.attachEvent('onunload', unhookHoverEvents); |
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| 36 | var sheets = doc.styleSheets, l = sheets.length; |
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| 37 | for(var i=0; i<l; i++) |
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| 38 | parseStylesheet(sheets[i]); |
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| 39 | } |
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| 40 | function parseStylesheet(sheet) { |
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| 41 | if(sheet.imports) { |
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| 42 | try { |
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| 43 | var imports = sheet.imports, l = imports.length; |
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| 44 | for(var i=0; i<l; i++) parseStylesheet(sheet.imports[i]); |
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| 45 | } catch(securityException){} |
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| 46 | } |
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[1182] | 47 | |
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[2712] | 48 | try { |
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| 49 | var rules = (currentSheet = sheet).rules, l = rules.length; |
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| 50 | for(var j=0; j<l; j++) parseCSSRule(rules[j]); |
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| 51 | } catch(securityException){} |
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| 52 | } |
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[1182] | 53 | |
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[2712] | 54 | function parseCSSRule(rule) { |
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| 55 | var select = rule.selectorText, style = rule.style.cssText; |
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| 56 | if(!csshoverReg.test(select) || !style) return; |
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[1182] | 57 | |
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[2712] | 58 | var pseudo = select.replace(/[^:]+:([a-z-]+).*/i, 'on$1'); |
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| 59 | var newSelect = select.replace(/(\.([a-z0-9_-]+):[a-z]+)|(:[a-z]+)/gi, '.$2' + pseudo); |
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| 60 | var className = (/\.([a-z0-9_-]*on(hover|active))/i).exec(newSelect)[1]; |
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| 61 | var affected = select.replace(/:(hover|active).*$/, ''); |
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| 62 | var elements = getElementsBySelect(affected); |
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| 63 | if(elements.length == 0) return; |
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[1182] | 64 | |
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[2712] | 65 | currentSheet.addRule(newSelect, style); |
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| 66 | for(var i=0; i<elements.length; i++) |
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| 67 | new HoverElement(elements[i], className, activators[pseudo]); |
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| 68 | } |
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[1182] | 69 | |
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[2712] | 70 | function HoverElement(node, className, events) { |
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| 71 | if(!node.hovers) node.hovers = {}; |
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| 72 | if(node.hovers[className]) return; |
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| 73 | node.hovers[className] = true; |
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| 74 | hookHoverEvent(node, events.on, function() { node.className += ' ' + className; }); |
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| 75 | hookHoverEvent(node, events.off, function() { node.className = node.className.replace(new RegExp('\\s+'+className, 'g'),''); }); |
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| 76 | } |
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| 77 | function hookHoverEvent(node, type, handler) { |
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| 78 | node.attachEvent(type, handler); |
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| 79 | hoverEvents[hoverEvents.length] = { |
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| 80 | node:node, type:type, handler:handler |
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| 81 | }; |
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| 82 | } |
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[1182] | 83 | |
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[2712] | 84 | function unhookHoverEvents() { |
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| 85 | for(var e,i=0; i<hoverEvents.length; i++) { |
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| 86 | e = hoverEvents[i]; |
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| 87 | e.node.detachEvent(e.type, e.handler); |
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| 88 | } |
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| 89 | } |
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| 90 | |
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[1182] | 91 | function getElementsBySelect(rule) { |
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[2712] | 92 | var parts, nodes = [doc]; |
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| 93 | parts = rule.split(' '); |
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| 94 | for(var i=0; i<parts.length; i++) { |
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| 95 | nodes = getSelectedNodes(parts[i], nodes); |
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| 96 | } return nodes; |
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| 97 | } |
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| 98 | function getSelectedNodes(select, elements) { |
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| 99 | var result, node, nodes = []; |
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| 100 | var identify = (/\#([a-z0-9_-]+)/i).exec(select); |
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| 101 | if(identify) { |
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| 102 | var element = doc.getElementById(identify[1]); |
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| 103 | return element? [element]:nodes; |
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| 104 | } |
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| 105 | |
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| 106 | var classname = (/\.([a-z0-9_-]+)/i).exec(select); |
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| 107 | var tagName = select.replace(/(\.|\#|\:)[a-z0-9_-]+/i, ''); |
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| 108 | var classReg = classname? new RegExp('\\b' + classname[1] + '\\b'):false; |
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| 109 | for(var i=0; i<elements.length; i++) { |
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| 110 | result = tagName? elements[i].all.tags(tagName):elements[i].all; |
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| 111 | for(var j=0; j<result.length; j++) { |
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| 112 | node = result[j]; |
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| 113 | if(classReg && !classReg.test(node.className)) continue; |
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| 114 | nodes[nodes.length] = node; |
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| 115 | } |
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| 116 | } |
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| 117 | |
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| 118 | return nodes; |
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| 119 | } |
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[1182] | 120 | </script> |
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