code: function($el) {
  		var caret = Math.min(this.caretPos, this.items.length);
  		var el = $el[0];
  		var target = this.buffer || this.$control[0];
  
  		if (caret === 0) {
  			target.insertBefore(el, target.firstChild);
  		} else {
  			target.insertBefore(el, target.childNodes[caret]);
  		}
  
  		this.setCaret(caret + 1);
  	}
docs: A helper method for inserting an element
  at the current caret position.
  
  @param {object} $el