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mifly on 02/29/08


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javascript


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The Ultimate getElementsByClassName - Robert’s talk - Web development and Internet trends

Published in: JavaScript 

URL: http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/

Plain TextExpand 
  1. function getElementsByClassName(oElm, strTagName, strClassName){
  2. 	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
  3. 	var arrReturnElements = new Array();
  4. 	strClassName = strClassName.replace(/\-/g, "\\-");
  5. 	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
  6. 	var oElement;
  7. 	for(var i=0; i<arrElements.length; i++){
  8. 		oElement = arrElements[i];
  9. 		if(oRegExp.test(oElement.className)){
  10. 			arrReturnElements.push(oElement);
  11. 		}
  12. 	}
  13. 	return (arrReturnElements)
  14. }

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