// JavaScript Document
(function($){
	$.fn.showDropMenu = function() {
		return this.each(function(){
			$(this).find('ul').css('visibility', 'visible');
		});
	}
	$.fn.hideDropMenu = function() {
		return this.each(function(){
			$(this).find('ul').css('visibility', 'hidden');
		});
	}
})(jQuery);

jQuery(function($) {
	// Your code using failsafe $ alias here...
	$('#SubPageMainNav li').bind('mouseenter', function(e){$(this).showDropMenu()});
	$('#SubPageMainNav li').bind('mouseleave', function(e){$(this).hideDropMenu()});
});