code: function(arr,filterFunc) {
  	
  	if (arr.filter) { return arr.filter(filterFunc); }
  	
  	var i = 0,
  		l = 0,
  		r = [];
  	
  	for (i = 0, l = arr.length; i < l; i++) {
  		if (filterFunc(arr[i])) {
  			r.push(arr[i]);
  		}
  	}
  	
  	return r;
  }
docs: **_filter()**
  
  Simple filter function for when Array.filter() is not available.
  
  * **@param {Array} `arr`** The array to filter.
  * **@param {Function} `filterFunc`** The function to use for filtering