Javascript String replaceAll()

String.prototype.replaceAll = function( 
  strTarget,/*www . j av a 2  s  . c  o m*/
  strSubString
  ){
    var strText = this;
    var intIndexOfMatch = strText.indexOf( strTarget );

    while (intIndexOfMatch != -1)
    {
      strText = strText.replace( strTarget, strSubString )
      intIndexOfMatch = strText.indexOf( strTarget );
    }

  return(strText);
}

String.prototype.replaceAll = function () {
    var search = new RegExp(arguments[0], "g");
    return this.replace(search, arguments[1]);
};