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Posted By

fulvius on 12/04/10

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Last Edited at 12/04/10 09:29pm

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getElementsByClassName

/ Published in: JavaScript
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Copy this code and paste it in your HTML 
  1. function getElementsByClassName(classname, node)  {
  2.     if(!node) node = document.getElementsByTagName("body")[0];
  3.     var a = [];
  4.     var re = new RegExp('\\b' + classname + '\\b');
  5.     var els = node.getElementsByTagName("*");
  6.     for(var i=0,j=els.length; i<j; i++)
  7.         if(re.test(els[i].className))a.push(els[i]);
  8.     return a;
  9. }

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