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Posted By

otaqui on 02/08/08

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Last Edited at 02/08/08 10:50am

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GetElementsByClassName

/ Published in: JavaScript
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  1. function getElementsByClassName(className, tag, elm){
  2. 	var testClass = new RegExp("(^|\\\\s)" + className + "(\\\\s|$)");
  3. 	var tag = tag || "*";
  4. 	var elm = elm || document;
  5. 	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
  6. 	var returnElements = [];
  7. 	var current;
  8. 	var length = elements.length;
  9. 	for(var i=0; i<length; i++){
  10. 		current = elements[i];
  11. 		if(testClass.test(current.className)){
  12. 			returnElements.push(current);
  13. 		}
  14. 	}
  15. 	return returnElements;
  16. }

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