MediaWiki:Common.js/ElementTestClass.js

/* Any JavaScript here will be loaded for all users on every page load. */ /************* General functions *************/ /* Test if an element has a certain class ************************************** * * Description: Uses regular expressions and caching for better performance. * Maintainers: User:Mike Dillon, User:R. Koot, User:SG */ var hasClass = (function {    var reCache = {};    return function (element, className) {        return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);   }; }); function getElementsByClass (node, className, tagName) { if (node.getElementsByClassName && (tagName == undefined || tagName == null || tagName == '*')) return node.getElementsByClassName(className); var list = node.getElementsByTagName(tagName?tagName:'*'); var array = new Array; var i = 0; for (i in list) { if (hasClass(list[i], className)) array.push(list[i]); }	return array; } /* Creates the method getElementsByClass, if unsupported from the browser */ if(!document.getElementsByClass) document.getElementsByClass = function(className) { return getElementsByClass(document, className, '*'); }; function getElementsByName (name, root) { if (root == undefined) root = document; var e = root.getElementsByTagName('*'); var r = new Array; for (var i = 0; i < e.length; i++) { if (e[i].getAttribute('name') == name) r[r.length] = e[i]; } return r; }