Applying double-click to v2 component?

Anyone know how to apply double-click functionality to a v2 component?

My goal is to have the user single click to select a certain item in the list and double-click to “activate” that item… the reason is so that the user can single and delete the item, while another item has been activated…

applying a movieclip prototype is not working out for me very well

 
movieclip.prototype.doubleClick = function(speed) {
	if (getTimer() - clickTime <= speed) return true; 
	clickTime = getTimer();
}

any help would be greatly appreciated, thanks