Revision: 26337
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at April 23, 2010 09:29 by jasonseney
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getElementsByClassName: function(classname, baseNode, tag) {
baseNode = baseNode || document.getElementsByTagName("body")[0];
var a = [];
var re = new RegExp('\\b' + classname + '\\b');
var els = baseNode.getElementsByTagName(tag || "*");
for (var i = 0, j = els.length; i < j; i++)
if (re.test(els[i].className)) a.push(els[i]);
return a;
}
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Similar to [Get Elements by Class Name]( http://snipplr.com/view/1696/get-elements-by-class-name/), but with optional "tag" parameter. Performance is increased by first retrieving the desired tag if available.
Initial Title
Javascript DOM - getElementsByClassName
Initial Tags
javascript, DOM
Initial Language
JavaScript