Anonymous

$.fn.mydropdown = function() {
	$(this).hover(function(){
		$(this).addClass("hover");
		$('ul:first',this).css('visibility', 'visible'); /* the ":first" makes sure we open one sub-level at a time instead of all at once */
	},function(){
		$(this).removeClass("hover");
		$('ul:first',this).css('visibility', 'hidden');
	});
}